# Solved papers for RAJASTHAN PMT Rajasthan - PMT Solved Paper-1995

### done Rajasthan - PMT Solved Paper-1995

• question_answer1) In an adiabatic process relation of relative change in pressure $\frac{\Delta P}{P}$with relative change m volume$\frac{\Delta P}{V}$ is:

A) $\frac{1}{\gamma }\left( \frac{\Delta V}{V} \right)$

B) $\frac{1}{{{\gamma }^{2}}}\left( \frac{\Delta V}{V} \right)$

C) $-\gamma \left( \frac{\Delta V}{V} \right)$

D) $\gamma \left( \frac{\Delta V}{V} \right)$

• question_answer2) There is a rough black spot on a polished surface. It is heated to a temperature $1400{}^\circ C$ then:

A) black spot will be seen more bright

B) spot and plate will be seen with equal brightness

C) neither spot nor plate will be seen bright

D) polished surface will be seen more bright

• question_answer3) A body cool from ${{80}^{o}}C$to ${{70}^{o}}C$ in 6 minutes. Then in cooling from ${{70}^{o}}C$ to ${{60}^{o}}C$, time taken will be:

A) less than 6 minutes

B) 6 minutes

C) mere than 6 minutes

D) zero

• question_answer4) A hammer of mass 1 kg having speed of$50\text{ }m/s,$ hit a iron nail of mass $200gm$. If specific heat of iron is $0.105cal/g{{m}^{o}}C$and half the energy is converted into heat, the raise in temperature of nail is:

A) ${{7.1}^{o}}C$

B) ${{9.2}^{o}}C$

C) ${{10.5}^{o}}C$

D) ${{12.1}^{o}}C$

• question_answer5) Thickness of a glass plate is t and its refractive index is n. Velocity of light in vacuum is c. Then minimum time taken by light in passing through the glass plate is:

A) $\frac{ct}{n}$

B) $\frac{nt}{c}$

C) $nct$

D) $\frac{nc}{t}$

• question_answer6) There are some points in stationary wave which:

A) are never at rest

B) are always in motion

C) are at rest twice in each cycle

D) are at rest once in each cycle

• question_answer7) A closed pipe of length L resonate with a lulling fork. The length of open pipe to resonate with the same tuning fork will be:

A) $\frac{L}{2}$

B) $L$

C) $\frac{3L}{2}$

D) $2L$

• question_answer8) Length of a piano wire is $1.1\,m$and its mass is $160g$. If its frequency is $33Hz$, then tension in wire in newton is:

A) $556\,N$

B) $~635\,N$

C) $766\,N$

D) $995\,N$

• question_answer9) Two sound sources ${{S}_{1}}$ and ${{S}_{2}}$ of frequencies $324Hz$and $320Hz$ are placed at certain separation. An observer is moving on line joining them. If he hears no beats then speed of observer is: $(\upsilon =344m/\sec )$

A) $20m/s$

B) $10m/s$

C) $5m/s$

D) $3.1m/s$

• question_answer10) A car moving with speed $28m/s$sound a horn of frequency$500Hz$, passes another car moving with a speed of $13m/s$in same direction, then frequency of horn heard by driver of another car is (speed of sound is $342m/s$):

A) $480\,Hz$

B) $500\,Hz$

C) $520\,Hz$

D) $580\,Hz$

• question_answer11) Ratio of energies of two photons whose wavelengths are $6000\overset{\text{o}}{\mathop{\text{A}}}\,$and $4000\overset{\text{o}}{\mathop{\text{A}}}\,$ is:

A) $2:3$

B) $3:2$

C) $1:5$

D) $5:1$

• question_answer12) Behaviour of zone plate coincides with:

A) prism

B) grating

C) biprism

D) lens

• question_answer13) Two charges$4q$and$q$ are placed at a distance$I$ another charge Q is placed at the midpoint of line joining the charges$4q$and$q$ If net force on charge$q$ is zero, then value of $Q$ is:

A) $+q$

B) $-q$

C) $+2q$

D) $3q$

• question_answer14) Potential on the surface of a hollow sphere is 10 volt. Then potential at its centre will be:

A) $10\,volt$

B) $5\,volt$

C) $25\,volt$

D) zero

• question_answer15) A charge is placed on the axis of a dipole at a distance r from centre then charge experiences a force F. If distance from the centre is doubled then new value of force will be:

A) zero

B) $\frac{1}{2}$

C) $\frac{F}{4}$

D) $\frac{F}{8}$

• question_answer16) Ratio of gravitational force and electrostatic force between two electrons is:

A) ${{10}^{-36}}$

B) ${{10}^{-39}}$

C) ${{10}^{-42}}$

D) ${{10}^{-47}}$

• question_answer17) In a coil current changes from $4A$to $2A$ in$0.05\text{ }sec,$ if induced e.m.f. is 8 volt then self-inductance of the coil is:

A) $0.5H$

B) $0.35H$

C) $0.2H$

D) $2mH$

• question_answer18) Dimension of a rectangular coil is$20cm\times 10cm$. Number of turns in coil is 60. It is rotating in an uniform magnetic field of $0.5T,$with a speed 1800 r.p.m. the maximum induced e.m.f. is:

A) $98\,V$

B) $110\,V$

C) $113\,V$

D) $118\,V$

• question_answer19) In a stop up transformer ratio of number of turn in primary to secondary coil is $1:25$. If input voltage is $230\text{ }volt$and load current is$2amp$, then current in primary coil is:

A) $50A$

B) $25A$

C) $12.5A$

D) $6.25A$

• question_answer20) Value of current in an A.C. circuit is $I=2\cos \omega t+\theta ),$then the value of${{I}_{rms}}$is:

A) $\sqrt{\text{2}}\text{A}$

B) $\frac{\text{1}}{\sqrt{\text{2}}}\text{A}$

C) $\text{2A}$

D) $\frac{\text{1}}{2}\text{A}$

• question_answer21) Impedence of a coil is $100ohm$at frequency $50Hz$, then its impedence on $150Hz$is:

A) $100\,ohm$

B) $300\,ohm$

C) $450\,ohm$

D) $600\,ohm$

• question_answer22) For a paramagnetic substance suspectibility is related with temperature as:

A) $V\propto T$

B) $X\propto \frac{1}{T}$

C) $X\propto \frac{1}{T-T}$

D) constant

• question_answer23) Kinetic energy of an electron in hydrogen atom in Bohrs orbit of radius r:

A) $\frac{KE}{2r}$

B) $\frac{K{{E}^{2}}}{2r}$

C) $\frac{KE}{r}$

D) $\frac{2KE}{r}$

• question_answer24) Wavelength of second line of Lyman series is $1025\overset{\text{o}}{\mathop{\text{A}}}\,,$ then wavelength of first line is:

A) $825\overset{\text{o}}{\mathop{\text{A}}}\,$

B) $900\overset{\text{o}}{\mathop{\text{A}}}\,$

C) $1215\overset{\text{o}}{\mathop{\text{A}}}\,$

D) $1325\overset{\text{o}}{\mathop{\text{A}}}\,$

• question_answer25) In an atom quantum number in a orbit n, $l$ and m are same. The maximum number of electrons are:

A) $2$

B) $2{{n}^{2}}$

C) $(2l+1)$

D) $2(2l+1)$

• question_answer26) Acceleration voltage in an electron gun is 50000 volt, de-Brogile wavelength of electron will be:

A) $0.55\overset{\text{o}}{\mathop{\text{A}}}\,$

B) $0.055\overset{\text{o}}{\mathop{\text{A}}}\,$

C) $0.077\overset{\text{o}}{\mathop{\text{A}}}\,$

D) $0.095\overset{\text{o}}{\mathop{\text{A}}}\,$

• question_answer27) Momentum of X-ray photon of wavelength $0.01\overset{\text{o}}{\mathop{\text{A}}}\,$in kg-m/sec is:

A) $6.6\times {{10}^{-22}}$

B) $6.6\times {{10}^{-32}}$

C) $6.6\times {{10}^{-46}}$

D) $6.6\times {{10}^{-27}}$

• question_answer28) Work function of metal is$2.4\,eV$. Then for photo electorons omission, maximum wavelength of photon will be:

A) $3000\overset{\text{o}}{\mathop{\text{A}}}\,$

B) $3500\overset{\text{o}}{\mathop{\text{A}}}\,$

C) $4500\overset{\text{o}}{\mathop{\text{A}}}\,$

D) $5000\overset{\text{o}}{\mathop{\text{A}}}\,$

• question_answer29) Ratio of ionization power of $\alpha$ and particles emitted from a radioactive element is;

A) $1:100$

B) $100:1$

C) $1000:1$

D) $1:1000$

• question_answer30) The half-life of radioactive clement is 5 days, then time taken by in decaying $\frac{\text{7}}{\text{8}}\text{th}$ of its initial amount:

A) $2.5\,day$

B) $5\,day$

C) $10\,day$

D) $15\,day$

• question_answer31) $_{\text{90}}\text{T}{{\text{h}}^{\text{232}}}$disintegrate continuously and finally converts into$_{\text{82}}\text{P}{{\text{b}}^{\text{208}}}\text{,}$then number of $\alpha$ and  particles produced are respectively:

A) $4,6~$

B) $6,4$

C) $3,2$

D) $2,3$

• question_answer32) In a diode thermionic emission from cathode will be maximum when cathode has:

A) high work function, low temperature

B) high work function, high temperature

C) low work function, high temperature

D) low work function, low tern temperature

• question_answer33) For a triode $\mu =25,Rp=40\,k\Omega$ ${{R}_{L}}=10\,k\Omega$and input signal voltage is 0.5 volt. Then output voltage is:

A) $1.25\,volt$

B) $2.5\,volt$

C) $5\,volt$

D) $10\,volt$

• question_answer34) Which of the following is used as an impurity for p-type semiconductor?

A) Boran

B) Bismuth

C) Arsenic

D) Phosphorous

• question_answer35) When a plane mirror is placed horizontally on a level ground at a distance of 60 metre from the foot of a tower. The top of the tower and its image in the mirror subtend at the eye an angle of ${{90}^{o}}$, the height of the tower is:

A) $30\,m$

B) $40\,m$

C) $60\,m$

D) $90\,m$

• question_answer36) Moment of inertia of a fan is$0.06kg-{{m}^{2}}$. If its angular speed is increased from 0 to 5 revolution/sec. Then its maximum angular momentum in M.K.S. unit is:

A) $0.3\,\pi$

B) $0.6\,\pi$

C) $\frac{0.03}{\,\pi }$

D) $\frac{0.6}{\,\pi }$

• question_answer37) A rigid body is rotating with an angular velocity$\vec{\omega },$ torque acting on it is$\vec{t}$and an angular momentum is$\vec{L}.$ Then relation between$\vec{t}$ and$\vec{L}$ is :

A) $\vec{t}=\vec{\omega }\times \vec{L}$

B) $\vec{t}=\vec{L}\frac{d\vec{\omega }}{dt}$

C) $\vec{t}=\vec{\omega }\frac{d\vec{L}}{dt}$

D) $\vec{t}=\frac{dL}{dt}$

• question_answer38) A block slides on inclined plane then velocity at the bottom of plane is v. If a ring roll on same inclined plane then its velocity at the bottom of plane is :

A) $2\upsilon$

B) $\upsilon$

C) $\frac{\upsilon }{2}$

D) $\frac{\upsilon }{\sqrt{2}}$

• question_answer39) A particle executes S.H.M. with an amplitude 4 cm. The displacement where its energy is half K.E. and half HE. is:

A) $2\sqrt{2}$cm

B) 2 cm

C) $\sqrt{2}$cm

D) $\frac{3}{\sqrt{2}}$cm

• question_answer40) A body of mass in is taken from earth surface to height equal to earth radius R. Then change in its potential energy is:

A) $\frac{mgR}{2}$

B) $mgR$

C) $2mgR$

D) $\frac{mgR}{4}$

• question_answer41) A satellite is revolving close to surface of planet of radius R, its time period is T- Time period of satellite for a planet of radius 3R will be:

A) $\text{3}\sqrt{\text{3}}\text{T}$

B) $\frac{\sqrt{\text{3}}}{2}\text{T}$

C) $\frac{1}{3\sqrt{\text{3}}}\text{T}$

D) $\frac{1}{2}\text{T}$

• question_answer42) A second pendulum is suspended in satellite revolving round the earth a height 2R above earth surface, then its time period in second is:

A) zero

B) 2 sec

C) 4 sec

D) infinite ($\infty$)

• question_answer43) A soap bubble is expand from radius 1 cm to 2 cm. If surface tension of soap solution is 0.05 N/m- The work done in joule will be:

A) $1.5\,\times {{10}^{-4}}$

B) $1.2\pi \times {{10}^{-4}}$

C) $0.3\pi \times {{10}^{-4}}$

D) $0.6\pi \times {{10}^{-4}}$

• question_answer44) The height of liquid rise in a capillary tube will be:

A) maximum at ${{4}^{o}}C$

B) maximum at ${{0}^{o}}C$

C) minimum at ${{4}^{o}}C$

D) minimum at ${{0}^{o}}C$

• question_answer45) Specific heat of gas at constant volume is:

A) $\frac{R}{(\gamma -1)}$

B) $\frac{R}{(\gamma +1)}$

C) $\frac{R}{\gamma }$

D) $R(\gamma -1)$

• question_answer46) A body radiate $Q\text{ }cat/c{{m}^{2}}$heat at a temperature${{227}^{o}}C$. The rate of energy radiate at a temperature ${{727}^{o}}C$is (in$cal/c{{m}^{2}}$):

A) $2Q$

B) $4Q$

C) $16Q$

D) $32Q$

• question_answer47) A train of mass $5\times {{10}^{6}}kg$is moving with a speed of$72\text{ }km/hr$. By applying break it is stopped, then heat produced in kilo calories is:

A) $1.2\times {{10}^{5}}kcal$

B) $2.4\times {{10}^{5}}kcal$

C) $4.8\times {{10}^{5}}kcal$

D) $6\times {{10}^{5}}kcal$

• question_answer48) Refractive index of air is 1.003. The correct thickness of air column which will have one or more wavelength of yellow light $(6000\overset{\text{o}}{\mathop{\text{A}}}\,)$ than in the same thickness in vacuum is:

A) $2mm$

B) $2cm$

C) 2m

D) $2km$

• question_answer49) Length of a sonometer wire is $l$and its tension is T. If tension is made half, then its second harmonics is equal to first harmonics. Then the length of wire will be:

A) $\frac{l}{\sqrt{2}}$

B) $\frac{l}{2}$

C) $l$

D) $\frac{3l}{2}$

• question_answer50) Two sources of sound of same frequency are situated at a distance 1 metre apart. An observer is moving parallel to line joining them at a distance 10 metre. If distance between two consecutive an tinode is observed to be $1.1$ metre, then frequency of source is ($\upsilon$ = 300 m/sec):

A) $1000\,Hz$

B) $3000\,Hz$

C) $3500\,Hz$

D) $4000\,Hz$

• question_answer51) Two waves of intensity $I$and$4I$ super impose on each other. Then in interference maximum and minimum intensity are respectively:

A) $3I$and$2I$

B) $25I$ and $9I$

C) $9I$ and $I$

D) $5I$ and $3I$

• question_answer52) In Youngs double slit experiment distance between slit is 0.1mm and distance between slit and screen is$20cm$. If $\lambda =5460\,\overset{\text{o}}{\mathop{\text{A}}}\,,$, then fringe width is:

A) $0.5mm$

B) $1.1\text{ }mm$

C) $1.5\text{ }mm$

D) $2.2mm$

• question_answer53) Five balls $1,2,3,4,5$are suspended side by side. The pair of balls $(1,2),$ $(1,4)$ and $(2,5)$ attract each other whereas balls $(2,3)$ and $(4,5)$ repel each other. The ball number 1 must be:

A) positively charged

B) negatively charged

C) neutral

D) conductor

• question_answer54) A charger$q$ is placed at the centre of circle of radius r. Then work done by charge Q in completing one round is:

A) $\frac{Q}{4\pi {{\varepsilon }_{0}}r}$

B) $\frac{Qq}{4\pi {{\varepsilon }_{0}}r}$

C) zero

D) $\frac{2q}{2r}$

• question_answer55) Two charge each of value $-q$ are placed at $(0\pm \,a)$. A charge + Q is placed on the y-axis, then:

A) it will execute S.H.M.

B) its motion is oscillatory, but not S.H.M.

C) it will remain stationary

D) will move along x-axis

• question_answer56) Radius of a current carrying circular coil is R at a distance$x(x>>R)$ on the axis of circular coil the magnetic field produced B is proportional to:

A) $B\propto \frac{1}{{{x}^{3/2}}}$

B) $B\propto \frac{1}{{{x}^{2}}}$

C) $B\propto \frac{1}{{{x}^{3}}}$

D) $B\propto \frac{1}{{{x}^{-1/2}}}$

• question_answer57) Atomic weight of single charge $Li$ is $6.06\,amu$and its energy is$400\,eV$. It enter normally to a uniform magnetic field of $0.8$ Tesla, then radius of circular path is:

A) $8.35\,cm$

B) $9.23\,cm$

C) $10.5\,cm$

D) $11.25\,cm$

• question_answer58) The length of a coil is $0.3\,m$and the number of turns is 2000. The area of cross-section of the coil is$1.2\times {{10}^{-3}}{{m}^{2}}$. Another coil is 300 turns is wrapped over the above coil. A current of 2A is passed through the solenoid and its direction is changed in$0.25\,sec$. Then the e.m.f induced in volt will be:

A) $7.6\times {{10}^{-2}}$

B) $4.8\times {{10}^{-3}}$

C) $3.2\times {{10}^{-4}}$

D) $3.2\times {{10}^{-2}}$

• question_answer59) Number of turns in primary coil of a transformer is 240. When input voltage is 20 volt, then output voltage is 2.5 volt. The number of turns in secondary coil is :

A) 250

B) 100

C) 10

D) 30

• question_answer60) When 4 amp current flows through a motor then power consumed is 20 watt, and resultant potential difference is 220 volt. The applied e.m.f. is :

A) 220 volt

B) 225 volt

C) 240 volt

D) 260 volt

A) permeability is very high and suspectibility is positive

B) permeability is very high and suspectibility is negative

C) permeability is very low and suspectibility is positive

D) permeability is very low and suspectibility is negative

• question_answer62) Angular momentum of an electron revolving in ${{\text{2}}^{\text{nd}}}$ orbit of radius r:

A) $\frac{h}{2\pi }$

B) $\frac{h}{\pi }$

C) $\frac{h}{\pi r}$

D) $\frac{h}{2\pi r}$

• question_answer63) The ionization energy of hydrogen atom in excited state is:

A) $13.1eV$

B) $3.4eV$

C) $1.51eV$

D) $1.9eV$

• question_answer64) Minimum wavelength of X-ray? Is $0.1\,\overset{\text{o}}{\mathop{\text{A}}}\,$, then applied accelerating voltage on the tube is:

A) $1.25\times {{10}^{3}}volt$

B) $1.24\times {{10}^{4}}volt$

C) $1.24\times {{10}^{5}}volt$

D) $1.24\times {{10}^{6}}volt$

• question_answer65) In X-ray spectra wavelength of ${{k}_{\alpha }}$ line is $\lambda ,$depends upon atomic number of target Z as:

A) $\lambda \propto {{Z}^{2}}$

B) $\lambda \propto {{(Z-1)}^{2}}$

C) $\lambda \propto \frac{1}{(Z-1)}$

D) $\lambda \propto \frac{1}{{{(Z-1)}^{2}}}$

• question_answer66) Mean mass of an element is 39.1 amu, The masses of its isotopes are 39, 40, 41 amu. If the abundance isotope of 40 amu is 0.012%, then relative abundance of other two is:

A) 93.7, 6.233

B) 90.237, 8.751

C) 93.073, 6.915

D) 91.387, 8.603

• question_answer67) In triode amplification voltage gain depends on:

A) $\mu ,RL$and input voltage

B) ${{R}_{P,}}{{R}_{L}}$and $\mu$

C) $\mu {{R}_{P,}}$ and input voltage

D) ${{R}_{P,}}\mu$and${{g}_{m}}$

• question_answer68) Forbidden energy gap in insulator is of:

A) 0 eV

B) 0.7 eV

C) 1.1 eV

D) 5 eV

• question_answer69) For a reverse biase $\text{p-n}$ junction:

A) p region is positive and the current is due to electrons

B) p region is positive and the current is duo to holes

C) p region is negative and the current is due to electrons

D) p region is negative and the current is due to both electrons and holes

• question_answer70) In an X-ray tube, electrons are accelerated by a potential difference V, the minimum wavelength of emitted X-rays is:

A) $\frac{12400}{V}m$

B) $\frac{12400}{V}\overset{0}{\mathop{\text{A}}}\,$

C) $\frac{1.24}{V}\overset{0}{\mathop{\text{A}}}\,$

D) $\frac{V}{12400}\overset{0}{\mathop{\text{A}}}\,$

• question_answer71) Which of the following is best absorbed of X-rays?

A) Berylium

B) Copper

C) Gold

A) its suspectibility and permeability are high

B) suspectibility is high and permeability is low

C) both suspectibility and permeability are low

D) suspectibility is low and permeability are high

• question_answer73) Two -spheres (A and B) each of mass 5 kg are connected by a light rod of length 1 m. Treating spheres as point. The ratio of moment of inertias about X axis perpendicular to length of rod and passing through centre of A and centre of rod is:

A) 1 : 1

B) 4 : 1

C) 1 : 2

D) 2 : 1

• question_answer74) The moment of inertia of a ring about its own axis is $I.$ Then its moment of inertia, about a tangent in the plane is:

A) $\frac{I}{2}$

B) $\frac{3I}{2}$

C) $2I$

D) $\frac{5I}{2}$

• question_answer75) Mass of a ring is M and its radius is R. It is rotating about its own axis with angular velocity $\omega$. Two particles each of mass m sticks to the rim at diameter opposite point. Now angular velocity of ring is:

A) $\frac{M\omega }{2m}$

B) $\frac{2m\omega }{M}$

C) $\frac{(M+2m)\omega }{M}$

D) $\frac{M\omega }{(M+2m)}$

• question_answer76) A thin rod of mass M acts as a compound pendulum. Distance between centre of suspension and centre of mass is d. Moment of inertia about axis of suspension of$I.$Then distance between centre of suspension and centre of oscillation is:

A) $\frac{I}{Md}$

B) $\frac{I}{2Md}$

C) $\frac{I}{12Md}$

D) $\frac{3I}{4Md}$

• question_answer77) The following bodies have same mass, then which will have maximum moment of inertia about an axis perpendicular to plane and passing through centre of mass:

C) square plate of side 2n

D) four rods forming a square of each side 2a

• question_answer78) Length of a simple pendulum is $I$and its maximum angular displacement is $\theta$ then its maximum K.E. is :

A) $mgl\,\sin \,\theta$

B) $mgl(1+\,\sin \,\theta )$

C) $mgl(1+\,\cos \,\theta )$

D) $mgl(1-\,\cos \,\theta )$

• question_answer79) Extension in length of a spring is 12 cm, when 5 kg mass is suspended on it. If spring oscillate vertically, then its time period is:

A) 0.7 sec

B) 0.9 sec

C) 1.1 sec

D) 1.4 sec

• question_answer80) $n$ bullets each of mass $m$ moving with velocity $u$ strike normally on a wall. The collision is elastic then force on wall is:

A) $mnu$

B) $2\,mnu$

C) $4\,mnu$

D) $0$

• question_answer81) A planet revolve round the sun in elliptical orbit when planet is nearest to sun at a distance $a$ its velocity is $\upsilon$ and when it is farthest from sun at a distance $b,$ its velocity is:

A) $\frac{b}{a}{{\upsilon }_{1}}$

B) $\left( \frac{a}{b} \right){{\upsilon }_{1}}$

C) $\left( \frac{\sqrt{a}}{b} \right){{\upsilon }_{1}}$

D) $\frac{\sqrt{b}}{a}{{\upsilon }_{1}}$

• question_answer82) A space ship of mass 2500 kg is to projected so mat it crosses earths gravitational field. If radius of earth is 6400 km. Then initial minimum velocity of space ship must be:

A) 5.6 km/sec

B) 7.25 km/sec

C) 8.5 km/sec

D) 11.2 km/sec

• question_answer83) The values of radius and mass of a planet are half than that of earth then value of g on that planet is :

A) $4.9\,m/{{s}^{2}}$

B) $9.8\,m/{{s}^{2}}$

C) $19.6\,m/{{s}^{2}}$

D) zero

• question_answer84) Surface tension force on water rised in capillary tube is balanced by force $72\times {{10}^{-6}}N$ acting in downward direction due to weight of water. If surface tension of water is 0.06 N/m. Then internal circumference of capillary tube is:

A) 0.5 mm

B) 1 mm

C) 1.2 mm

D) 1.75 mm

• question_answer85) Critical temperature in terms of van der Waals constants a and b is:

A) $\frac{8a}{27Rb}$

B) $\frac{27ab}{8R}$

C) $\frac{8Rb}{27a}$

D) $\frac{27a}{8Rb}$

• question_answer86) ${{O}_{2}}$ and ${{H}_{2}}$ gas are at same temperature $7{}^\circ K$. Then average kinetic energy of ${{O}_{2}}$ molecules in comparision of average kinetic energy of ${{H}_{2}}$ molecules is:

A) 16 times

B) 8 times

C) equal

D) $\frac{1}{16}$times

• question_answer87) In an electric dipole value of charge is $3.2\times {{10}^{-19}}$ coulomb and distance between charges is $2.4\,\overset{\text{o}}{\mathop{\text{A}}}\,$ It is placed in electric field of $4\times {{10}^{5}}\,volt/m,$ then dipole moment of dipole is:

A) $9.6\times {{10}^{-5}}$ coulomb-metre

B) $12.8\times {{10}^{-14}}$ coulomb-metre

C) $7.68\,\times {{10}^{-29}}$ coulomb-metre

D) $30\times {{10}^{-24}}$ coulomb-metre

• question_answer88) Nucleus of He is revolving in circular orbit of radius 0.8 m. It completes a circle in 2 seconds, then the magnetic induction at the centre of circle is:

A) ${{}_{\text{0}}}\text{ }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-19}}}\text{T}$

B) $\text{1}\text{.6}{{}_{\text{0}}}\text{ }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-19}}}\text{T}$

C) $\frac{{{}_{\text{0}}}}{2}\text{ }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-19}}}\text{T}$

D) $\text{2}{{}_{\text{0}}}\text{ }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-19}}}\text{T}$

• question_answer89) In potentiometer experiment a battery of e.m.f. 3 volt is balanced at a length of 45 cm and e.m.f. of another battery balance at 60 cm length. Then e.m.f. of the battery is:

A) 3 volt

B) 4 volt

C) 4.5 volt

D) 6 volt

• question_answer90) Side of a square coil is 4 cm. A magnetic field normal to plane of coil is changing at a rate of 0.4 tesla/ sec. If resistance of coil is $2\times {{10}^{-3}}\,ohm,$ then induced current is:

A) 0.16 A

B) 0.32 A

C) 3.2 A

D) 1.6 A

• question_answer91) In an A.C. circuit inductance L = 0.5 H and capacitance $C=8\,\mu F.$ For maximum current in circuit, value of angular frequency is:

• question_answer92) In an electric motor back e.m.f. is maximum:

A) at the start of motor

B) at the stop of motor

C) at maximum speed of motor

D) same in all case

• question_answer93) A chock coil of negligible resistance connected to 220 volt A.C. source- The 5 mA current flows through it. The average power consumed by chock coil is:

A) zero

B) 11 watt

C) $44\times {{10}^{3}}$ watt

D) 1.1 watt

• question_answer94) Self-inductance of a chock coil is 10 m Hz. When it is connected with 10 volt D.C. source, then power consumed is 20 watt. And when connected with 10 volt A.C. source, the average power consumed is 10 watt. Frequency of A.C. source is :

A) 50 Hz

B) 60 Hz

C) 80Hz

D) 100 Hz

• question_answer95) On a bulb is marked 60 volt and 10 watt and is to be run with an A.C. source of 100 volt. Then inductance of series coil inquired is:

A) 1.53 H

B) 2.15 H

C) 3.27 H

D) 3.89 H

• question_answer96) In an L-C-R circuit C = 25 $\mu F,$L= 0.1 Hand R = 25 $\Omega$ if an e.m.f. E = 310 sin 314 t volt is connected to circuit, then impedence is:

A) $57.32\,\Omega$

B) $79.48\,\Omega$

C) $89.5\,\Omega$

D) $99.1\,\Omega$

• question_answer97) In above equation what inductance must be added in the circuit so the impedence become minimum :

A) 0, 31 H

B) 0.35 H

C) 1 H

D) 2 H

• question_answer98) In question (96) value of current is:

A) $i=5.4\,\sin \,(314t+\phi )$

B) $i=3.\,\sin \,(314t+\phi )$

C) $i=3.\,1\,\sin \,(314t-\phi )$

D) $i=3.\,46\,\sin \,(314t+\phi )$

• question_answer99) In an A.C. circuit current and voltage are: $i={{i}_{0}}\,\sin \,(\omega t-\pi /2),e={{e}_{0}}\,\sin \,\omega t$ then average power consumed in the circuit is:

A) $\frac{1}{2}\,{{i}_{0}}{{e}_{0}}\,watt$

B) ${{i}_{0}}{{e}_{0}}$ watt

C) $ie$watt

D) zero

• question_answer100) The correct circuit for full wave rectifier containing a capacitor C and load resistance ${{R}_{L}}$ is:

A)

B)

C)

D)

• question_answer101) Electronic configuration or $Al$ is:

A) $2,8,3$

B) $2,6,5$

C) $2,3,8$

D) $2,5,6$

• question_answer102) Equilibrium constant ${{K}_{c}}$ for the reaction $2N{{H}_{3}}{{N}_{2}}+3{{H}_{2}}$is given by the following:

A) $\frac{{{[N{{H}_{3}}]}^{2}}}{[{{N}_{2}}]{{[{{H}_{2}}]}^{3}}}$

B) $\frac{[{{N}_{2}}]{{[{{H}_{2}}]}^{3}}}{{{[N{{H}_{3}}]}^{2}}}$

C) $\frac{3{{[H]}_{2}}[{{N}_{2}}]}{2[N{{H}_{3}}]}$

D) $\frac{2[N{{H}_{3}}]}{{{[H]}_{2}}[{{N}_{2}}]}$

• question_answer103) Which of the following reduce Tollens reagent?

A) $HOOC-COOH$

B) ${{C}_{6}}{{H}_{5}}OOH$

C) $C{{H}_{3}}COOH$

D) $HCOOH$

• question_answer104) In natural petrolium is:

A) saturated hydrocarbon

B) compound of sulphur

C) ring saturated hydrocarbon

D) all the above

• question_answer105) In any system at equilibrium state if temperature, pressure and concentration is changed then the equilibrium shifts in the direction that tends to neutralize the effect of change. This is known as:

A) Guldberg Wages law

B) Gaylussacs law

D) Le-Chateliers principle

• question_answer106) $X+NaN{{O}_{2}}+HCl\xrightarrow{{}}C{{O}_{2}}+{{N}_{2}}+{{H}_{2}}O$ compound X is:

A) $C{{H}_{3}}CON{{H}_{2}}~$

B) $C{{H}_{3}}NO$

C) $N{{H}_{2}}CON{{H}_{2}}$

D) $C{{H}_{3}}N{{H}_{2}}$

• question_answer107) The main product of the reaction of ${{C}_{2}}{{H}_{5}}N{{H}_{2}}$ with north is acid is:

A) ${{C}_{2}}{{H}_{5}}OH$

B) $C{{H}_{3}}ONO$

C) $C{{H}_{3}}CN$

D) $C{{H}_{3}}-N=0$

• question_answer108) The shape of $CC{{l}_{4}}$is:

A) triangular planer

B) tetrahedral

C) square planar

D) linear

• question_answer109) Cryolite is added to alumina in the extraction of aluminium:

A) to remove impurity

B) to dissolve alumina

C) to catalyze

D) to obtain pure $Al$

• question_answer110) The aqueous solution of a salt is acidic salt is made up of:

A) Strong acid and weak base

B) Strong base and weak acid

C) Strong acid and strong base

D) Weak acid and weak base

• question_answer111) In atomic pile the ${{D}_{2}}O$ act as:

A) fuel

B) controller

C) moderator

D) coolent

• question_answer112) $C{{H}_{3}}-O-C{{H}_{3}}$ and $C{{H}_{3}}C{{H}_{2}}OH$ are:

A) geometrical isomers

B) positional isomers

C) chain isomers

D) functional isomers

• question_answer113) The I. U. P. A. C. name of ${{(C{{H}_{3}})}_{2}}CH-CH{{(C{{H}_{3}})}_{2}}$ is:

A) 1, 1, 2, 3-tetra methyl ethane

B) 2, 3-dimethyl butane

C) 1, 2-dimethyl ethane

D) 2, 3, 3-trimethyl butane

• question_answer114) Alkaline $KMn{{O}_{4}}$solution is called:

A) Benedict solution

B) Tollens reagent

C) Baeyers reagent

D) None of these

• question_answer115) Which of the following contain acidic hydrogen?

A) $C{{H}_{3}}-C\equiv CH$

B) $C{{H}_{3}}-CH=C{{H}_{2}}$

C) $C{{H}_{3}}-CH=CH-C{{H}_{3}}$

D) $C{{H}_{3}}-C{{H}_{3}}$

• question_answer116) Which of the following will be obtained by mixing $50%$ $NaOH$ to bauxite?

A) $Al{{(OH)}_{3}}$

B) $Al$

C) $Fe$

D) $NaAl{{O}_{2}}$

• question_answer117) Deviation from Aufbaus principle is:

A)

B)

C)

D)

• question_answer118) $C{{H}_{3}}-C\equiv CH+{{H}_{2}}O\xrightarrow{{{H}^{+}}/H{{g}^{2+}}}X$ compound X is:

A) $C{{H}_{3}}\text{ }COC{{H}_{3}}$

B) $C{{H}_{3}}C{{H}_{2}}COOH$

C) $C{{H}_{3}}C{{H}_{2}}CHO$

D) $C{{H}_{3}}-CH=C{{H}_{2}}$

• question_answer119) When acetone react with chloroform and $KOH$ formed hypnotic drug. Its name is:

A) chloritons

B) chloropicrin

C) asprin

D) none of these

A) an element

B) a metal

C) transition metal

D) an alloy

• question_answer121) $C{{H}_{3}}\text{ }CHO+C{{H}_{3}}\text{ }Mg\text{ }Br\xrightarrow{{}}\text{ }X$compound X is:

A) a secondary alcohol

B) a tertiary alcohol

C) a primary alcohol

D) $C{{H}_{3}}-C-C{{H}_{3}}$

• question_answer122) The enzyme which converts starch into maltose is:

A) maltase

B) diastase

C) zymase

D) invertase

• question_answer123) ${{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}}$ and $C{{H}_{3}}-O-{{C}_{3}}{{H}_{7}}$show following type of isomerism:

A) metamerism

B) functional group

C) tautomerism

D) position

• question_answer124) The oxidation number of S in ${{H}_{2}}{{S}_{2}}{{O}_{8}}$ is:

A) $+6$

B) $-6$

C) $+4$

D) $+8$

• question_answer125) The shape of electron cloud is determined by:

A) Azimuthal quantum number

B) Spin quantum number

C) Principle quantum number

D) All of the above

• question_answer126) On addition of $N{{H}_{4}}OH$in the equilibrium: $N{{H}_{4}}ClN{{H}_{4}}^{\oplus }+C{{l}^{\bigcirc -}}$

A) more $N{{H}_{4}}$ is formed

B) dissociation of $N{{H}_{4}}Cl$increase

C) more $C{{l}^{-}}$ is formed

D) dissociation of $N{{H}_{4}}Cl$decreases

• question_answer127) For an electron $n=2$and $l=1$ the total magnetic quantum numbers are:

A) $0$

B) $3$

C) $2$

D) $1$

• question_answer128) An alkene on ozonolysis gives only one compound. Alkene is:

A) $C{{H}_{3}}-CH=CH-C{{H}_{3}}$

B) $C{{H}_{3}}-CH=C{{H}_{2}}$

C) $C{{H}_{3}}-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,=C{{H}_{2}}$

D) $C{{H}_{3}}-C{{H}_{2}}-CH=C{{H}_{2}}$

• question_answer129) If the value of pH of solution is 2, then the concentration of $({{H}^{+}})$ is:

A) ${{10}^{-2}}M$

B) $2\times 10M$

C) $0.001M$

D) $0.0001M$

• question_answer130) Bond with lowest energy is:

A) $\pi$ bond

B) hydrogen bond

C) ionic bond

D) o bond

• question_answer131) Dipositive ion of an element has the electronic configuration $2,8,10$. Atomic number of the element is:

A) $22$

B) $24$

C) $25$

D) $28$

• question_answer132) The negative part of the addition reagent adds on that C-atom of unsymmetrical alkene which bears the minimum number of H-atoms. The statement is related to:

A) Peroxide effect

B) Saytzeffs rule

C) Markownikoffs rule

D) Le-Chateliers principle

• question_answer133) $C{{H}_{3}}COONa\xrightarrow[\Delta ]{\text{Sodalime}}X+N{{a}_{2}}C{{O}_{3}}$.

A) $C{{H}_{4}}$

B) $C{{H}_{3}}OH$

C) $C{{H}_{3}}-C{{H}_{3}}$

D) none of these

• question_answer134) A atom of $Mn$ have (atomic no. = 25 and mass no. = 55). The nucleus will have:

A) 25 proton

B) 55 proton

C) 25 neutron

D) 55 neutron

• question_answer135) $RMgI+C{{H}_{3}}OH\xrightarrow{{}}X,$, compound X is:

A) $R-R$

B) $R-H$

C) $R-OH$

D) none of these

• question_answer136) Which of the following will form most stable carbonium ion on dehydration:

A) $C{{H}_{3}}-\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,-{{(C{{H}_{3}})}_{2}}$

B) $C{{H}_{3}}-CH-C{{H}_{2}}C{{H}_{3}}$

C) $C{{H}_{3}}\text{ }C{{H}_{2}}\text{ }C{{H}_{2}}\text{ }C{{H}_{2}}\text{ }OH$

D) $C{{H}_{3}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-C{{H}_{2}}OH$

• question_answer137) From left to right in a period ionization potential:

A) decreases

B) increases.

C) first increases then decreases

D) first decreases then increases

A) $N{{a}_{2}}C{{O}_{3}}.10{{H}_{2}}O$

B) ${{(NaP{{O}_{3}})}_{6}}$

C) $N{{a}_{2}}C{{O}_{3}}$

D) $N{{a}_{2}}{{B}_{4}}{{O}_{7}}\text{ }.\text{ 10}{{H}_{2}}O$

• question_answer139) Lithium and magnesium resemble in properties becauses:

A) their electronic configuration is same

B) ratio of change of size of their cation is approximately same

C) both have approximately same size

D) both are found together in nature.

• question_answer140) Moving down a group:

A) electronegativity increases

B) ionization potential increases

C) oxidizing strength increases

D) reducing strength increases

• question_answer141) Which of the following property oftenly increases down a group?

B) Electron affinity

C) Electronegativity

D) Ionization potential

A) $absolute\text{ }alcohol+C{{H}_{3}}OH$

B) absolute + petrol + benzene

C) $absolute\text{ }alcohol+C{{H}_{3}}COOH$

D) $absolutealcohol+{{C}_{6}}{{H}_{5}}OH$

• question_answer143) In the extraction of copper, ore is heated in the presence of air at high temperature. This process is called:

A) roasting

B) calcination

C) smelting

D) distillation

• question_answer144) Carbonium ion with highest stability is:

A) ${{(C{{H}_{3}})}_{3}}\overset{+}{\mathop{C}}\,$

B) $\overset{+}{\mathop{C}}\,{{H}_{3}}$

C) $C{{H}_{3}}-\overset{+}{\mathop{C}}\,H-C{{H}_{3}}$

D) $C{{H}_{3}}C{{H}_{2}}\overset{+}{\mathop{C}}\,{{H}_{2}}$

• question_answer145) A white precipitate of silver chloride is formed when sodium chloride solution is added to silver nitrate solution because:

A) $AgN{{O}_{3}}$is insoluble in $NaCl$solution

B) $NaCl$ is insoluble in water

C) $NaCl$ is an inorganic compound

D) $C{{l}^{-}}$ ions are present in $NaCl$ solution

• question_answer146) ${{N}_{2}}+3{{H}_{2}}2N{{H}_{3}}+22.4kcal$ the favourable condition for the formation of ammonia is:

A) high temperature and high pressure

B) low temperature and low pressure

C) high temperature and low pressure

D) low temperature and high pressure

• question_answer147) $C{{H}_{3}}Cl+2Na+C{{H}_{3}}Cl\xrightarrow{{}}$ $C{{H}_{3}}-C{{H}_{3}}+2NaCl$ This reaction is:

A) Kolbes electrolysis

B) Williamsons synthesis

C) Wurtz reaction

D) Sabatier Senderens reaction

• question_answer148) Reaction of $C{{H}_{3}}C1$with alcoholic $KOH$ will give:

A) $C{{H}_{4}}$

B) $C{{H}_{3}}OH$

C) $C{{H}_{2}}=C{{H}_{2}}$

D) $C{{H}_{3}}CHO$

• question_answer149) ${{C}_{2}}{{H}_{5}}COOAg+C{{l}_{2}}\xrightarrow{\Delta }{{C}_{2}}{{H}_{5}}Cl$ $+AgCl+C{{O}_{2}}$ This reaction is called:

A) Wurtz-Fitting reaction

B) Hunsdicker reaction

C) Hell-Volhard Zelensky reaction

D) Hoffmann mustard oil reaction

• question_answer150) Pyrite are concentrated by the following method:

A) gravity separation

B) froth floatation

C) roasting

D) calcination

• question_answer151) The necessary condition for precipitation is:

A) solubility product $<$ ionic product

B) solubility product $>$ ionic product

C) solubility product $=$ ionic product

D) none of these

• question_answer152) Which of the following reaction does not occurs?

A) $Cu+2AgN{{O}_{3}}\xrightarrow{{}}Cu{{(N{{O}_{3}}\text{)}}_{2}}+2Ag$

B) $2KBr+{{I}_{2}}\xrightarrow{{}}2KI+B{{r}_{2}}$

C) $Fe+{{H}_{2}}S{{O}_{4}}\xrightarrow{{}}FeS{{O}_{4}}+{{H}_{2}}$

D) $CuO+{{H}_{2}}\xrightarrow{{}}Cu+{{H}_{2}}O$

• question_answer153) $HCHO+40%$strong alkaline solution $\xrightarrow{\,}$ one of the product is:

A) $C{{H}_{3}}OH$

B) $C{{H}_{3}}C{{H}_{2}}OH$

C) $C{{H}_{3}}COOH$

D) $CH\equiv CH$

• question_answer154) In which of the following reaction the oxidation and reduction complete?

A) $NaBr+HCl\text{ }\xrightarrow{{}}NaCl+\text{ }HBr$

B) $HBr+AgN{{O}_{3}}\xrightarrow{{}}AgBr+HN{{O}_{3}}$

C) ${{H}_{_{2}}}+B{{r}_{2}}\xrightarrow{{}}2HBr$

D) $N{{a}_{2}}O+{{H}_{2}}S{{O}_{4}}\xrightarrow{{}}N{{a}_{2}}S{{O}_{4}}+{{H}_{2}}O$

• question_answer155) Which of the following reaction is not affected by the change of pressure:

A) ${{N}_{2}}+{{O}_{2}}2NO$

B) ${{N}_{2}}+3{{H}_{2}}2N{{H}_{3}}$

C) $2S{{O}_{2}}+{{O}_{2}}2S{{O}_{3}}$

D) $PC{{l}_{3}}+C{{l}_{2}}PC{{l}_{5}}$

• question_answer156) Boiling point of ethyl alcohol is higher than dimethyl ether although the molecular weights of both are same. Its reason is:

A) ethanol has hydrogen bond

B) methyl groups are attached with oxygen in ether

C) ether is insoluble in water

D) dipole moment of ethanol is comparitively more

• question_answer157) No two electron of an atom can have the same set of four quantum numbers this statement is related to:

A) Faults rule

B) $(n+l)$rule

C) Hunds rule

D) Aufbaus principal

• question_answer158) Which of the following will give both iodoform test and Fehlings test?

A) $C{{H}_{3}}C{{H}_{2}}OH$

B) $C{{H}_{3}}COC{{H}_{3}}$

C) $C{{H}_{3}}CHO$

D) $HCHO$

• question_answer159) In the froth floatation process for the concentration of ore, the ore particles rise to the surface because ore particle:

A) are light

B) dont get wet by water

C) are insoluble in water

D) have electric charge

• question_answer160) $C{{H}_{3}}COO{{C}_{2}}{{H}_{5}}+C{{H}_{3}}COO{{C}_{2}}{{H}_{5}}\xrightarrow{{}}$ $C{{H}_{3}}COC{{H}_{2}}COO{{C}_{2}}{{H}_{5}}+{{C}_{2}}{{H}_{5}}OH$ This reaction is called:

A) Williamsons synthesis

B) Esterification

C) Trans esterification

D) Claisen condensation

• question_answer161) Which is an amphoteric oxide?

A) $MgO$

B) ${{K}_{2}}O$

C) $A{{l}_{2}}{{O}_{3}}$

D) $CuO$

A) $n=2,$$l=0$

B) $n=2,$$l=1$

C) $n=1,$$l=0$

D) $n=1,$$l=2$

• question_answer163) Alkaline hydrolysis of an ester is called:

A) saponification

B) hydrolysis

C) neutralization

D) hydrogenations

• question_answer164) Most of the alloys are made from the following type of element:

A) f-block

B) p-block

C) d-block

D) s-block

• question_answer165) In $\pi$bond and a bond i:

A) $9\sigma \,\,\,9\pi$

B) $5\sigma \,\,\,9\pi$

C) $9\sigma \,\,\,7\pi$

D) $5\sigma \,\,\,8\pi$

A) a hormone

B) an enzyme

C) an antibody

D) none of these

A) $2,4,6$-trinitro phenol

B) $2,4$-dinitro phenol

C) $2,4,6$-trinitro benzoic acid

D) none of these

• question_answer168) The compound obtained by the reaction of $C{{H}_{3}}\text{ }Mg\text{ }Br$with formaldehyde is:

A) $C{{H}_{3}}COOH$

B) $C{{H}_{3}}C{{H}_{2}}OH$

C) $C{{H}_{3}}CHO$

D) $HCOOH$

• question_answer169) The correct sequence of die radius of an atom its cation and anion is:

A) atom > cation > anion

B) atom > cation = anion

C) atom > cation > anion

D) atom < cation > anion

• question_answer170) Which of the following is insoluble in concentrate sulphuric acid?

A) Benzene

B) Hexene

C) Ethanol

D) n-hexane

• question_answer171) $C{{H}_{3}}C{{H}_{2}}I+NaOR\to C{{H}_{3}}C{{H}_{2}}OR+NaI$ This reaction is:

A) Williamsons continuous etherification

B) Curteus reaction

C) Williamsons synthesis

D) Wurtz reaction

• question_answer172) Conjugate base of $HC{{O}_{3}}^{-}$ is:

A) $C{{O}_{3}}^{2-}$

B) $C{{O}_{2}}$

C) ${{H}_{2}}O$

D) ${{H}_{2}}C{{O}_{3}}$

A) electrophilic substitution

• question_answer174) Ethylene can be prepared by the electrolysis of aqueous solution of:

A) potassium formate

B) potassium succinate

C) potassium malate

D) potassium turner ate

• question_answer175) ${{N}_{2}}+{{O}_{2}}2NO,$ $\Delta H=43.2kcal$ Forward reaction is favoured by:

A) decrease in temperature

B) decrease in pressure

C) increase in pressure

D) increase in temperature

• question_answer176) The electronic configuration of alkaline earth metal is:

A) $n{{s}^{2}}(n-1){{d}^{10}}$

B) $n{{s}^{2}}$

C) $n{{s}^{1}}$

D) $n{{p}^{6}}$

• question_answer177) ${{C}_{2}}{{H}_{5}}CHO$ reacts with a base to give 3-hydroxybutanol. This reaction is called:

A) Aldol condensation

B) Claisens condensation

C) Polymerization

D) Riemer-Tiemann reaction

• question_answer178) Which of the following oxidation number is not zero?

A) ${{S}_{8}}$

B) ${{P}_{4}}$

C) $HCHO$

D) $C{{H}_{4}}$

• question_answer179) Absolute alcohol from rectified sprit can be prepared by:

A) hydrolysis

B) steam distillation

C) azeotropic distillation

D) fractional distillation

• question_answer180) Which of the following have ionic bond, covalent bond and co-ordinate bond?

A) Water

B) Ammonia

C) Potassium bromide

D) Copper sulphate pentahydrate

• question_answer181) This reaction is called:

A) Deals Alder reaction

B) Finkalstine reaction

C) Gattermann reaction

D) Riemer-Tiemann reaction

• question_answer182) Electropositive character in a period from left to right:

A) first increases then decreases

B) first decreases then increases

C) decreases

D) increases

• question_answer183) The product of the reaction of 2 mole of chloroform with $4\text{ }mole$of $KOH$:

A) formic acid

B) succinic acid

C) potassium formate

D) potassium chloride

• question_answer184) Bond angle and bond length in benzene are:

A) ${{120}^{o}}$and $1.39\overset{\text{o}}{\mathop{\text{A}}}\,$

B) ${{120}^{o}}$ and $154\overset{\text{o}}{\mathop{\text{A}}}\,$

C) ${{180}^{o}}$ and $1.33\overset{\text{o}}{\mathop{\text{A}}}\,$

D) ${{120}^{o}}$ and $1.34\overset{\text{o}}{\mathop{\text{A}}}\,$

• question_answer185) A catalyst in a reversible equilibrium:

A) increases the rate of backward reaction

B) increase the rate of forward reaction

C) increases the rate of forward and backward reaction with equal rate

D) none of these

• question_answer186) Element with atomic number 33, the proton and number of atom have:

A) $33$

B) $3$

C) $6$

D) $9$

• question_answer187) High hydrocarbon change into low hydrocarbon, this process is known as:

A) mining

B) cracking

C) isomerization

D) hydroforming

• question_answer188) Which of the following can act as oxidant as well as reductant?

A) ${{H}_{2}}S{{O}_{4}}$

B) ${{K}_{2}}C{{r}_{2}}{{O}_{7}}$

C) ${{H}_{2}}{{O}_{2}}$

D) $NaOH$

• question_answer189) Which of the following reagent will distinguish between propene and propyne:

A) Bromine water

B) ${{[Ag{{(N{{H}_{3}})}_{2}}]}^{+}}$

C) Alkaline $KMn{{O}_{4}}$

D) None of these

• question_answer190) Which of the following is dimagnetic?

A) ${{O}_{2}}^{-}$

B) $NO$

C) ${{O}_{2}}$

D) ${{F}_{2}}$

• question_answer191) Which of the following Hoffmann bromide reaction?

A) $C{{H}_{2}}COCl+C{{H}_{3}}OH\xrightarrow{{}}$$C{{H}_{2}}COOC{{H}_{3}}HCl$

B) $C{{H}_{3}}CON{{H}_{2}}+B{{r}_{2}}+NaOH\xrightarrow{{}}$$C{{H}_{3}}N{{H}_{2}}+{{K}_{2}}C{{O}_{3}}+2KBr+2{{H}_{2}}O$

C) $RCN+4H\xrightarrow{{}}RCHN{{H}_{2}}$

D) $C{{H}_{3}}CN+2{{H}_{2}}\text{O}\xrightarrow{{}}C{{H}_{3}}COOC{{H}_{3}}$

• question_answer192) What is the pH value of $40ml\text{ }0.10M\,HCl$ solution combind with $10ml\text{ }0.45M$ $NaOH$solution?

A) $12$

B) $8$

C) $10$

D) $6$

• question_answer193) Aromatic compound mainly gives:

A) electrophilic substitution reaction

B) nucleophilic substitution reaction

A) $N{{O}_{2}}^{-}$

B) $B{{F}_{3}}$

C) $C{{l}^{-}}$

D) $N{{H}_{3}}$

• question_answer195) If the concentration of $Cr{{O}_{4}}^{---}$ in saturated solution of $AgCr{{O}_{4}},$ then the solubility product is:

A) $4\times {{10}^{-8}}$

B) $8\times {{10}^{-12}}$

C) $16\times {{10}^{-12}}$

D) $32\times {{10}^{-12}}$

• question_answer196) This reaction is called:

A) Friedel Craft reaction

B) Schmidt reaction

C) Schotten Baumann reaction

D) Gatter-mann reaction

• question_answer197) $HCHO$reacts with $N{{H}_{3}}$to give:

A) formaldehyde

B) formaltne

C) hexamethylene

D) formaldehyde ammonia

• question_answer198) Malachite is the ore of:

A) $Ag$

B) $Al$

C) $Fe$

D) $Cu$

• question_answer199) The following property is not shown by d-block elements:

A) diamagnetism

B) paramagnetism

C) tendency to form complex compounds

D) variable valency

• question_answer200) If the pH value of solution is 5 then what is the pOH value of solution?

A) $8$

B) $20$

C) $9$

D) $21$

• question_answer201) Metamorphosis in Cockroach is:

A) complete

B) incomplete

C) holometabolous

D) absent

• question_answer202) Which animal is extinct from India?

A) Lion

B) Tiger

C) Dodo

D) Cheetah

• question_answer203) Maximum BMR is present in:

A) Frog

B) Elephant

C) Horse

D) Rat

• question_answer204) In following layers, which layer is not penetrated by blood cells?

A) Dermis

B) External epidermis

C) Muscles

D) Hypodermal layer

• question_answer205) Which organ, converts urea into ammonia is?

A) Kidney

B) Testis

C) Liver

D) Intestine

• question_answer206) How many pairs of cranial nerves are present in Rabbit?

A) 8 pairs

B) 10 pairs

C) 12 pairs

D) 14 pairs

• question_answer207) Sensory organs of Ascaris are:

A) papillae

B) phasmid

C) amphids

D) all of the above

• question_answer208) In which mitosis does not takes place?

A) Muscle cell

B) Bone cell

C) Epithelial cell

D) Nerve cell

• question_answer209) Pseudopodia is characteristic of following class:

A) Ciliata

B) Sporozoa

C) Sarcodina

D) Mestigofora

A) egg

B) zygote

C) nerve cell

D) haploid cell

• question_answer211) Excretory organs of Earthworm are:

A) body wall

B) flame cells

C) nephridia

D) kidney

• question_answer212) If Hydra is divided into many pieces, then:

A) each piece convert into complete Hydra

B) only few pieces convert into complete Hydra

D) Hydra will reproduce very fast

• question_answer213) Male Cockroach is differ from female Cockroach because in this present:

A) anal cirrae

B) anal styles

C) antennae

D) mandible

• question_answer214) Who controls the concentration of calcium?

A) Hypothalamus

B) Thyroid

C) Pituitary gland

D) Thyroid and parathyroid

• question_answer215) A cell in take external substances through:

A) phagocytesis

B) pinocytosis

C) endocytosis

D) all of the above

• question_answer216) Function of golgi body is:

A) synthesis of protein

B) synthesis of lipid

C) synthesis of carbohydrate

D) oxidative phosphorylation

• question_answer217) Which is not carbohydrate?

A) Cellulose

B) Glucose

C) Starch

D) Wax

• question_answer218) Formation of glycogen from glucose is called:

A) glycolysis

B) Krebs cycle

C) citric acid cycle

D) glycogcnesis

• question_answer219) Nerve cells are present in:

A) Amoeba

B) Sycon

C) Paramecium

D) Hydra

A) Entamoeba histolytica

B) Entamoeba gingiualis

C) Entamoeba coli

D) Plasniodiimi ovale

• question_answer221) Number of testis present in Ascaris:

A) one

B) two

C) three

D) four

• question_answer222) In which part of Cockroach exoskeleton is in vaginated:

A) proctodium

B) stomodium

C) mesenteron

D) both a and b

• question_answer223) Which is not present in protein?

A) Carbon

B) Sulphur

C) Nitrogen

D) Phosphorus

• question_answer224) Following is not present in prokaryocic cell:

A) smooth ER

B) mitochondria

C) golgi body

D) all the above

A) nucleosides

B) nucleotides

C) sugar

D) amino acid

• question_answer226) Maximum quantity of iron present in:

A) red blood cells

B) white blood cells

C) bone cells

D) muscle cells

• question_answer227) Which organ is power house of cell?

A) Nucleus

B) Mitochondria

C) Golgi body

D) Lysosome

• question_answer228) Which of the following only one host is present in life cycle?

A) Entamoeba histolytica

B) Plasmodium

C) Taenia

D) Liver fluke

• question_answer229) By which process, oxidation of pyruvic acid gives $C{{O}_{2}}$ and ${{H}_{2}}O$?

A) Krebs cycle

B) Tricarboxylic acid cycle

C) Citric acid cycle

D) Glycogenesis

• question_answer230) Living substance of cell is called:

A) cytoplasm

B) nucleoplasm

C) protoplasm

D) mitochondrial liquid

• question_answer231) Which is not Chordate characteristic?

A) Notochord

B) Placenta

C) Dorsal tubular nerve chord

D) Phryngeal gill slits

• question_answer232) Red blood corpuscles of Rabbit are :

A) round and biconvex

B) oval and biconvex

C) round and biconcave

D) oval and biconcave

• question_answer233) Which ions help is blood coagulation?

A) ${{K}^{+}}$

B) $C{{a}^{++}}$

C) $M{{g}^{++}}$

D) $N{{a}^{+}}$

A) insulin

B) glucagon

C) digestive enzymes

D) all the above

• question_answer235) Which of the following is absent in heart of Rabbit?

A) left auricle

B) left ventricle

C) sinus venosus

D) pace maker

• question_answer236) Glochidium larva presents in :

A) Bivalvia

B) Gastropoda

C) Cephalopoda

D) Arthropoda

• question_answer237) Retrogressive metamorphosis is present in:

A) Frog

B) Rabbit

C) Rat

D) none of the above

• question_answer238) Choanocytes present in animals of following phylum :

A) Protozoa

B) Porifera

C) Coelenterata

D) Ptenophora

• question_answer239) Non-poisonous snake is :

A) Python

B) Viper

C) Cobra

D) Krat

• question_answer240) Arteries which carries blood to diaphragm :

A) cardiac

B) phrenic

C) comary

D) pulmonary

A) homolecithal

B) mesolecithal

C) centerolecithal

D) microlecithal

• question_answer242) Which hormone is not synthesized in pituitary gland?

A) Growth hormone

B) FSH

C) ACTH

D) Vassoprcssin

• question_answer243) Structure derived from ectoderm:

A) liver

B) muscles

C) brain

D) mesenteries

• question_answer244) Contraction in pupil of eye is due to:

A) dimlight

B) bright light

C) darkness

D) maximum temperature

• question_answer245) In which group, notochord is restricted to only anterior region ?

A) Hemichordata

B) Urochordata

C) Cephalochordata

D) Chordata

• question_answer246) How many lobes are present in each cerebral hemisphere?

A) Two

B) Four

C) Six

D) Eight

• question_answer247) Body cavity if formed by in vagination of:

A) apomere

B) hypomere

C) mcsomere

D) both b and c

• question_answer248) First flying animals were :

A) Mammals

B) Birds

C) Insects

D) Reptile

A) aquatic animals

B) aquatic insects

C) eggs of fishes

D) aquatic vegetation

A) Plasmodium uivax

B) Plasmodium ouale

C) Plasmodium Falciparum

D) Plasmodium malariae

• question_answer251) In Rabbit, exoskeleton is in the form of :

A) hair

B) nails

C) hoof

D) both a and b

• question_answer252) Polyp stage is not present in :

A) Hydrozoa

B) Scyphozoa

C) Anthozoa

D) Calcarea

• question_answer253) Both cerebral hemisphere are joined by transverse septum which is made up of white matter fibres are called :

A) corpus callosum

B) corpus albicans

C) corpus spongiossum

D) corpus stratum

• question_answer254) Archenter one is covered by :

A) ectoderm

B) endoderm

C) mesoderm

D) both b and c

• question_answer255) Structure formed due to cleavage is:

A) zygote

B) morula

C) gastrula

D) neurulla

• question_answer256) Function of chloragogen cells of Earthworm is:

A) digestion

B) locomotion

C) excretion

D) respiration

• question_answer257) Hydrolytic enzymes are present in :

A) lysosome

B) mesosomes

C) chondriosome

D) endoplasmic reticulum

• question_answer258) Which is nut protein ?

A) Actin

B) Myosine

C) Albumin

D) Haeme

• question_answer259) In which part of Cockroach both exoskeleton and endoskeleton present?

B) Thorax

C) Abdomen

D) All of the above

• question_answer260) Effective organ for intake of food in Earthworm is:

A) mouth

B) buccal cavity

C) pharynx

D) stomach

• question_answer261) If nucleus of Amoeba is degenerated, what will be the effect?

A) Divide immediately

C) No change

D) Rate of growth will be fast

• question_answer262) Infant/juvenile stage of Cockroach is called:

A) maggot

B) nymph

C) zoea

D) grub

A) Amoeba

B) Entamoeba histolytica

C) Plasmodium

D) Entamoeba coli

• question_answer264) Anaema disease is due to the lack of :

A) calcium

B) copper

C) iron

D) zinc

• question_answer265) Protein synthesis takes place in :

A) golgi body

B) plasma membrane

C) smooth endoplasmic reticulum

D) none of the above

• question_answer266) Quantity of nucleic acid present in cell is approximately :

A) 2%

B) 5%

C) 10%

D) 15%

A) interchange of sol-gel state

B) Amoeba comes in contact with cold water

C) Amoeba comes in contact with hot water

D) Amoeba comes in contact with food

• question_answer268) Sperms of Hydra formed from :

A) interstitial cells

B) epithelial muscular layer

C) nerve cells

D) all of the above

• question_answer269) In which part of Earthworm setae are absent ?

A) in prostomium

B) in prostomium and clitellum

C) clitellum region

D) clitellum/ first and last segment

• question_answer270) Why does the colour of blood is red in Earthworm?

A) Due to intracellular haemoglobin

B) Due to intercellular haemoglobin

C) Due to red blood corpuscles

D) Due to white blood corpuscles

• question_answer271) Eggs in which the amount of yolk is very minute, are called :

A) alecithal

B) microlecithal

C) mesolecithal

D) telolecithal

• question_answer272) Food of Hydra is :

A) aquatic plants

B) aquatic animals

C) algae and insects

D) small fishes

• question_answer273) Excretory substance of Amoeba is:

A) ammonia

B) urea

C) uric acid

D) guanine

• question_answer274) Which is not covered by external limiting line boundary?

A) Ribosome

B) Centrosome

C) Lysosome

D) Spindle

• question_answer275) By which process glucose is converted into $C{{O}_{2}}$ and ${{H}_{2}}O$?

A) Glycolysis

B) Krebs cycle

C) Pentose phosphate shunt

D) All of the above

• question_answer276) Calcium is necessary for:

A) growth of bone and teeth

B) muscle contraction

C) blood coagulation

D) all of the above

• question_answer277) Recapitulation theory was established by:

A) Muller

B) Von Baer

C) Haeckel

D) both a and c

• question_answer278) Which part of Cockroach wings are not present ?

A) Prothorax

B) Mesothorax

C) Metathorax

D) None of above

• question_answer279) Entamoeba histolytion is different from Amoeba, because it does not possess:

A) food vacuole

B) contractile vacuole

C) nucleus

D) nuclear membrane

• question_answer280) Neoteny is present in :

A) Hyla

C) Axolotal

D) Salamander

• question_answer281) Prene glands are present in :

A) Amphibia

B) Reptiles

C) Birds

D) Mammals

A) Dipnoi

B) Mollusca

C) Elasmobranchii

D) Bony fishes

• question_answer283) What is present in Cestoda class?

A) Absence of alimentary canal

B) Metamerically segmented body

C) Suckers and hook present

D) All the above

• question_answer284) DNA is also present in following:

A) golgi body

B) lysosome

C) mitochondria

D) ribosome

• question_answer285) Acrosome of sperm is formed from:

A) nucleus

B) mitochondria

C) ribosome

D) golgi body

• question_answer286) Respiratory centre for controlling respiration is situated in:

A) medulla oblongata

B) cerebellum

C) vagus nerve

D) cerebral hemisphere

• question_answer287) Sea horse is an example of:

A) Mammalia class

B) Aves class

C) Pisces class

D) Reptile class

• question_answer288) Which animal is not insect?

A) Ticks

B) Honey bee

C) Beetal

D) Wasps

• question_answer289) Archaeopteryx possess the characteristic of following :

A) Reptiles

B) Birds

C) Amphibia and Reptiles

D) Reptiles and Birds

• question_answer290) In which phylum, cilia are completely absent?

A) Annelida

B) Mollusca

C) Arthropoda

D) Porifera

• question_answer291) Hypothalamus is controlling centre of:

A) hunger and thirst

B) temperature

C) sleep

D) all of the above

• question_answer292) Only one primary spermatocyte formed :

A) one sperm

B) two sperms

C) three sperms

D) four sperms

• question_answer293) Which organ absorbs maximum quantity of iodine?

A) Thyroid

B) Liver

C) Stomach

D) Pancreas

• question_answer294) In grey matter following is present:

A) cyton, axon, dendrites

B) dendrites

C) axon

D) none of the above

• question_answer295) Kangaroo is member of following order:

A) primate

B) chiroptera

C) marsupelia

D) monotremata

A) triploblastic

B) diploblastic

C) asymmetric

D) bisymmetric

• question_answer297) Non-stripped muscles are present:

A) in arteries

B) in veins

D) all of the above

• question_answer298) Most useful organ of Rabbit is:

B) testis

C) ovary

• question_answer299) In which animal poison gland is present?

A) Male Platypus

B) Female Lizard

C) Male Lizard

D) Frog

• question_answer300) Coelom of Ascaris is called:

A) schizocoelom

B) enterocoelom

C) pseudocoelom

D) acoelom

• question_answer301) The biggest herbarium of India is situated in:

B) Lucknow

C) Delhi

D) Calcutta

• question_answer302) What is the reason for red colour of snow in snowy region?

A) Chlamydomonas nivalis

B) Chlamydomonas yellowstonensis

C) Chlorella

D) None of the above

• question_answer303) Food, habitat and economic importance of plants are studied in:

A) Genetics

B) Microbiology

C) Phycology

D) Economic botany

• question_answer304) The synthesis of florigen occurs in:

A) root

B) leaf

C) branch

D) stem

• question_answer305) The functional unit of chlorophyll is:

A) stroma

B) grana

C) quantosome

D) oxysome

• question_answer306) Chiasmatas appear in which of the following phase?

A) Zygotene

B) Diplotene

C) Pachytene

D) Diakinesis

A) mostly useful

B) harmful

C) always useful

D) sometimes useful

• question_answer308) Which of the following accept $C{{O}_{2}}$ in photosynthesis ?

A) RuDP

B) ATP

D) PGA

• question_answer309) The value of R. Q. in organic acid will be:

A) one

B) less than one

C) more than one

D) none of the above

• question_answer310) The movement of Mimosa pudica is :

A) seismonastic

B) chemotrophic

C) geotrophic

D) none of the above

• question_answer311) Who proposed the chromosomal theory of in heritance?

A) Bateson

B) Mendel

C) Robert Hook

D) W.S. Sutton and Boveri

• question_answer312) Double helical structure of DNA was proposed by:

A) Robert Brown

B) Watson and Crick

C) H.G. Khorana

D) Sutton and Boveri

• question_answer313) Ribosome is consist of:

A) RNA and protein

B) DNA and protein

C) DNA and RNA

D) DNA, RNA and protein

• question_answer314) The reserve food material in fungi is:

A) starch

B) protein

C) fat

D) glycogen

• question_answer315) Artificial synthesis of gene was first time done by :

A) H. G. Khorana

B) Hertwig

C) Strassburger

D) none of these

• question_answer316) The main plant body of bryophyta is:

A) gametophytic

B) sporophytic

C) thallus

D) none of the above

• question_answer317) Who proposed the central dogma?

A) Crick

B) Khorana

C) Nirenberg

D) None of these

• question_answer318) Product of $C{{O}_{2}}$ reduction is:

A) pyruvic acid

B) citric acid

C) tri carboxylic acid

D) glucose

• question_answer319) Embryo formation, without fertilization is called:

A) apogamy

B) parthenogenesis

C) apomixis

D) none of the above

A) cellulose

B) protein

C) fat

D) starch

• question_answer321) Calotropis and Capparis ecologically grouped under:

A) hydrophytes

B) xerophytes

C) mesophytes

D) halophytes

• question_answer322) During ${{C}_{4}}$ pathway, first $C{{O}_{2}}$ fixation takes place in chloroplast of:

A) guard cells

B) mesophyll cells

C) spongy parenchyma

D) bundle sheath cells

• question_answer323) Who proposed the histogen theory?

A) Schmit

B) Hanstein

C) Nagelli

D) Mankey

• question_answer324) Primary tissuess are formed from:

A) apical and lateral meristem

B) lateral meristem

C) intercalary and apical meristem

D) none of the above

• question_answer325) Division in anthers is:

A) amitosis

B) meiosis

C) mitosis

D) budding

A) A and T

B) A and C

C) A and G

D) T and C

• question_answer327) When a well irrigated herb plants stem is cut, then xylem sap comes out due to the:

A) wall pressure

B) root pressure

C) osmatic pressure

D) endosmosis

• question_answer328) Velamen tissue is the characteristic feature of:

A) parasitic plants

B) epiphytic plants

C) saprophytic plants

D) all of the above

• question_answer329) The plant, which does not follow Mendels law of dominance is:

A) Mirabilis jalapa

B) Pea

C) Gram

D) Chandni

A) Mankey

B) Nagelli

C) Hanstein

D) Schmit

• question_answer331) Chipko movement was started from:

A) Gwalior-(M.P.)

B) GarhwaI-(Uttranchal)

C) Jodhpur-(Rajasthan)

D) Alwar-(Rajasthan)

• question_answer332) 9 : 3 : 3 : 1 follows the Mendels law of:

A) unit characters

B) dominance

C) independent assortment

D) purity of gametes

• question_answer333) Cross between ${{F}_{1}}$ generation and pure recessive parent is called:

A) test cross

B) back cross

C) monohybrid cross

D) none of the above

• question_answer334) Genome is the set of chromosomes which remains:

A) diploid

B) haploid

C) triploid

D) none of these

• question_answer335) The position of stomata in Vallisneria is:

C) amphistomatal

D) absent

• question_answer336) Usually root and stomata are absent in:

A) hydrophytic plants

B) xerophytic plants

C) mesophytic plants

D) halophytic plants

• question_answer337) Mendels laws were rediscovered in:

A) 1890

B) 1900

C) 1800

D) 1905

• question_answer338) Which of the following are nonrenewable resources?

A) Minerals and fossils

B) Minerals and water

C) Minerals and soil

D) None of the above

• question_answer339) In pond ecosystem, the maximum number is represented by;

A) producers

B) consumers

C) decomposers

D) none of these

• question_answer340) If decomposers are removed from an ecosystem then which of the following will affected?

A) Producers

B) Biosphere

C) Bio-geochemical cycle

D) Consumers

• question_answer341) Tuberculosis (T.B.) causing bacterium is:

A) Bacillus coli

B) Mycobacterium tuberculosis

C) Vibrio cholera

D) E. coli

• question_answer342) Quinine is obtained from which part of Cinchona plant?

A) Bark

B) Leaf

C) Root

D) Flower

• question_answer343) Commercial cork is obtained from:

A) Quercus suber

B) Peepal

C) Pinus

D) Mango

• question_answer344) Which of the following medicine is used to reduce the blood pressure?

A) Papavaerin

B) Reserpine

C) Gugal

D) Gum

• question_answer345) What is the relationship between food web and stability of an ecosystem?

A) If higher the complexity of web the stability will be high

B) Simpler the web/ higher the stability of system.

C) More the webs, lower stability

D) None of the above

• question_answer346) Opium is obtained from:

A) root

B) stem

C) immature fruit

D) leaf

• question_answer347) The main source of energy in alt organisms is:

A) water

B) sun light

C) nuclear energy

D) all of the above

• question_answer348) Whole inflorescence is edible in:

A) Cauliflower

B) Tomato

C) Brinjal

• question_answer349) Annual rings formed in:

A) monocot stem

B) monocot root

C) dicot stem

D) dicot root

• question_answer350) Pulses belongs to family:

A) Malvaceae

B) Leguminosae

C) Cruciferae

D) Solanaceae

• question_answer351) Genetic code on nucleic acid is represented by:

A) type of nucleic acid

B) number of nucleic acid

C) linear sequence of nucleic acid

D) all of the above

• question_answer352) The relation between DPD, OF and TP is:

A) $\text{DPD=OP+TP}$

B) $\text{DPD+OP-TP}$

C) $\text{DPD=}\frac{\text{OP}}{\text{TP}}$

D) none of the above

• question_answer353) Axile placentation is present in family:

A) Malvaceae and Liliaceae

B) Cruciferae

C) Cruciferae and Malvaceae

D) All of the above

• question_answer354) Monothecous anther is the characteristic of family;

A) Malvaceae

B) Liliaceae

C) Solanaceae

D) Cruciferae

• question_answer355) The floral formula of family Cruciterae is:

A) $Ebr\,\oplus \,_{\begin{smallmatrix} O \\ + \end{smallmatrix}}^{\uparrow }\,{{K}_{2+2}}{{C}_{\times 4}}{{A}_{2+4}}{{G}_{(\underline{2})}}$

B) $\,\oplus \,_{\begin{smallmatrix} O \\ + \end{smallmatrix}}^{\uparrow }\,{{K}_{4}}{{C}_{4}}{{A}_{6}}{{G}_{(2)}}$

C) $\,%\,_{\begin{smallmatrix} O \\ + \end{smallmatrix}}^{{}}\,{{K}_{6}}{{C}_{5}}{{A}_{7}}{{G}_{(2)}}$

D) $Ebr\,%\,_{\begin{smallmatrix} O \\ + \end{smallmatrix}}^{{}}\,{{K}_{4+4}}{{C}_{4}}{{A}_{4+4}}\,{{G}_{(\underline{2})}}$

• question_answer356) Sterile stamens are found in:

A) Cassia fistula (amaltas)

B) Solanum

C) Raphanus sativus

D) Pisum

• question_answer357) Viviparous reproduction is the characteristic of:

A) Tinospora

B) Xanthomonas

C) Nitrosomonas

D) Rhizophora

• question_answer358) The rhizoids of Riccia are:

A) unicellular and unbranched

B) unicellular and branched

C) multicellular and unbranched

D) none of the above

• question_answer359) The gametophytc generation is dominant in:

A) gymnosperm

B) bryophyte

C) angiosperm

D) pteridophyta

• question_answer360) Bicollateral vascular bundles are the characteristic of family:

A) Malvaceae

B) Liliaceae

C) Cucurbitaceae

D) Leguminoseae

• question_answer361) Water is not required in the fertilization of which of die following ?

A) Riccia

B) Albugo

C) Pteridium

D) Ulothrix

• question_answer362) The male gamete of fem is:

A) aflagellate

B) uniflagcllate

C) biflagellate

D) multiflagellate

• question_answer363) Hyphae of Albugo are:

A) aseptate and multinucleate

B) septate and multinucleate

C) aseptate and uninucleate

D) septate and multinucleate

• question_answer364) Cell organelte covered by unit membrane is:

A) ribosome

B) lysosome

C) mitochondria

D) chloroplast

• question_answer365) Glycolysis takes place in:

A) mitochondria

B) cytoplasm

C) chloroplast

D) lysosome

• question_answer366) Extra nuclear DNA is found in:

A) chloroplast

B) mitochondria

C) both (a) and (b)

D) none of these

• question_answer367) Cohesion theory was proposed by:

A) Dixon and Jolly

B) Boss

D) Muller

• question_answer368) Guttation occurs maximum at which time:

A) noon

B) morning

C) evening

D) night

• question_answer369) How many nucleus take part in the double fertilization of Capsella?

A) 4

B) 5

C) 2

D) 3

• question_answer370) Symbiotic relation of an alga and fungus is called:

A) Lichen

B) Mycorrhiza

C) Cuscuta

D) Orchid

• question_answer371) The father of taxonomy is:

A) Carl Linnaeus

B) Charles Darwin

C) Bentham and Hooker

D) None of the above

• question_answer372) The anthers of Capsella are:

A) haploid

B) diploid

C) triploid

D) none of these

• question_answer373) Photosynthetic lamellae in bacteria are found in:

A) cytoplasm

B) chromoplast

C) leucoplast

D) none of the above

• question_answer374) In Ulothrix, the number of chloroplast per cell is;

A) 1

B) 2

C) 3

D) 4

• question_answer375) Unit which shows henditary characters is:

A) neutron

B) cistron

C) operon

D) heptanes

• question_answer376) The largest botanical garden of world is:

A) Indian botanical garden, Calcutta

B) Royal botanical garden, (Kew) England

C) Paris botanical garden

D) None of these

• question_answer377) Nodulated roots are found in:

A) Malvaceae

B) Leguminosae

C) Solanaceae

D) Compositae

• question_answer378) Mineral salt from soil enters into the cell in the form of:

A) salts

B) molecules

C) ions

D) none of these

• question_answer379) Which of the following is not emit $C{{O}_{2}}$ in the environment?

A) Nuclear energy

B) Oil

C) Coal

D) Gas

• question_answer380) Which of the following is needed to make soil from sand?

A) Organic matter

B) Soil air

C) Soil water

D) None of these

• question_answer381) Mendels laws were rediscovered by:

A) de Vries in Holland

B) Bateson in England

C) Nellson in Sweden

D) Linnaeus in England

• question_answer382) The active nucleus is absent in which of the following cell?

A) Vessel cell

B) Seive tube

C) Tracheid

D) All of the above

• question_answer383) 50% time of total cell division is taken by:

A) ${{G}_{1}}^{-}$phase

B) S-phase

C) ${{G}_{2}}-$phase

D) M-phase

• question_answer384) Selective permeability is the characteristic of:

A) cell wall

B) cell membrane

C) cytoplasm

D) none of these

• question_answer385) Only thallus type plant body is the characteristic of which of the following group?

A) Algae

B) Pteridophyta

C) Bryophyta

D) Gymnospcrm

• question_answer386) Respiratory enzymes are found in:

A) mitochondria

B) granum

C) chloroplast

D) none of these

• question_answer387) Oval and eccentric starch granules are present in:

A) Rice

B) Maize

C) Potato

D) Ground nut

• question_answer388) The antibiotic obtained from Streptomyces griseus is:

A) streptomycin

B) chloromycin

C) both (a) and (b)

D) none of these

A) man and biosphere

B) man, antibody and bacteria

D) Man and biology

• question_answer390) Lichens are the indicator of:

A) water pollution

B) air pollution

C) soil pollution

D) sound pollution

• question_answer391) The function of cytokinin is:

A) cell division

B) delayin senescence

C) breaking the dormancy

D) all of the above

• question_answer392) $\text{IAA}$ inhibits the growth of:

A) root

B) leaf

C) stem

D) none of these

• question_answer393) Lenticels are found in:

A) monocot root

B) monocot stem

C) old dicot stem

D) none of these

• question_answer394) The father of Botany is:

A) Linnaeus

B) Theophrastus

C) Bentham

D) Hooker

• question_answer395) Which of the following is male gamete?

A) Androecium

B) Anther

C) Pollen

D) None of these

A) orthotropous

B) anatropous

C) semi-anatropous

D) none of these

A) two antipodals and single egg cell

B) one antipodal and two egg cells

C) one antipodal and three egg cells

D) all of the above

• question_answer398) The shape of vascular bundles in monocot is:

A) D

B) H

C) Y

D) Z

• question_answer399) Which of the following is absent in gymnosperm?

A) Companion cell

B) Sieve tube

C) Tracheid

D) All of these