A) \[\frac{\pi }{6}\] done clear
B) \[\frac{\pi }{4}\] done clear
C) \[\frac{\pi }{3}\] done clear
D) \[\frac{\pi }{2}\] done clear
View Answer play_arrowA) \[\left( 0,8 \right]\] done clear
B) \[\left[ 8,\infty \right)\] done clear
C) \[\left[ 16,\infty \right)\] done clear
D) \[\left( 0,16 \right]\] done clear
View Answer play_arrowA) 32 done clear
B) 25 done clear
C) 41 done clear
D) 9 done clear
View Answer play_arrowA) \[\left( \frac{8}{5},-\frac{-9}{5} \right)\] done clear
B) \[\left( \frac{-9}{5},\frac{8}{5} \right)\] done clear
C) \[\left( \frac{9}{5},\frac{8}{5} \right)\] done clear
D) \[\left( \frac{8}{5},\frac{9}{5} \right)\] done clear
View Answer play_arrowA) \[\frac{-1}{2}\] done clear
B) \[\frac{1}{4}\] done clear
C) \[0\] done clear
D) non-existent in the interval done clear
View Answer play_arrowA) \[3\omega \] done clear
B) \[3\omega (\omega -1)\] done clear
C) \[3{{\omega }^{2}}\] done clear
D) \[3\omega (1-\omega )\] done clear
View Answer play_arrowA) \[y=x+\sqrt{3}\] done clear
B) \[\sqrt{3}y=x-\sqrt{3}\] done clear
C) \[y=\sqrt{3}x-\sqrt{3}\] done clear
D) \[\sqrt{3}y=x-1\] done clear
View Answer play_arrowA) \[p-\frac{5}{4}\] done clear
B) \[p-\frac{1}{2}\] done clear
C) \[p-2\] done clear
D) \[p+\frac{5}{4}\] done clear
View Answer play_arrowA) \[\frac{9}{2}\] done clear
B) \[\frac{27}{8}\] done clear
C) \[\frac{81}{8}\] done clear
D) \[\frac{81}{4}\] done clear
View Answer play_arrowA) \[4x+3y+5=0\] done clear
B) \[3x+4y+3=0\] done clear
C) \[4x+3y+3=0\] done clear
D) \[3x+4y+5=0\] done clear
View Answer play_arrowA) 48 done clear
B) 54 done clear
C) 96 done clear
D) 108 done clear
View Answer play_arrowA) ellipse if \[a=1,\,b=2\] done clear
B) circle if \[a=\,b=1\] done clear
C) pair of straight line if \[a=\,1,b=0\] done clear
D) all of above done clear
View Answer play_arrowA) \[\frac{-9}{2}\] done clear
B) \[\frac{11}{2}\] done clear
C) \[\frac{-11}{2}\] done clear
D) \[\frac{15}{2}\] done clear
View Answer play_arrowA) 6 done clear
B) 7 done clear
C) 9 done clear
D) 12 done clear
View Answer play_arrowA) \[a=\frac{\sqrt{e}}{2}\] and \[b=\frac{-1}{8}\] done clear
B) \[a=\frac{-\sqrt{e}}{2}\] and \[b=\frac{1}{8}\] done clear
C) \[a=\frac{1}{8}\] and \[b=\frac{\sqrt{e}}{2}\] done clear
D) \[a=\frac{-\sqrt{e}}{2}\] and \[b=\frac{-1}{8}\] done clear
View Answer play_arrowSTATEMENT-1: The line \[x-2y=2\] meets the parabola \[{{y}^{2}}+2x=0\] only at one point \[(-2,-2)\]. |
STATEMENT-2: The line \[y=\operatorname{m}x-\frac{1}{2m}(m\ne 0)\] is 2m tangent to the parabola \[{{y}^{2}}=-2x\] at the point\[\left( \frac{-1}{2{{m}^{2}}},\frac{-1}{m} \right)\]. |
A) Statement-1 is true, statement-2 is true and Statement-2 is correct explanation for statement-1. done clear
B) Statement-1 is true, Statement-2 is true and Statement-2 is NOT the correct explanation for Statement-1. done clear
C) Statement-1 is true, Statement-2 is false. done clear
D) Statement-1 is false, Statement-2 is true. done clear
View Answer play_arrowA) 0 done clear
B) 4 done clear
C) 5 done clear
D) 11 done clear
View Answer play_arrowquestion_answer18) If the equation \[4{{x}^{3}}+5x+k=0(k\in R)\] has a negative real root then
A) \[k=0\] done clear
B) \[-\infty <k<0\] done clear
C) \[0<k<\infty \] done clear
D) \[-\infty <k<\infty \] done clear
View Answer play_arrowA) 1 done clear
B) 2 done clear
C) \[\sqrt{3}\] done clear
D) \[\sqrt{5}\] done clear
View Answer play_arrowA) \[\frac{30}{13}\] done clear
B) \[\frac{30}{11}\] done clear
C) \[\frac{13}{30}\] done clear
D) \[\frac{26}{11}\] done clear
View Answer play_arrowSTATEMENT-1: The system of linear equations\[\begin{align} & x+(\sin \theta )y+(\cos \theta )z=0 \\ & x+(\cos \theta )y+(\sin \theta )z=0 \\ & x-(\sin \theta )y-(\cos \theta )z=0 \\ \end{align}\]has a non-trivial solution for only one value of \[\theta \] lying in the interval\[\left( 0,\frac{\pi }{2} \right)\]. |
STATEMENT-2: The equation in \[\theta \] \[\left| \begin{matrix} \cos \theta & \sin \theta & \cos \theta \\ \sin \theta & \cos \theta & \sin \theta \\ \cos \theta & -\sin \theta & -\cos \theta \\ \end{matrix} \right|=0\] has only one solution lying in the interval\[\left( 0,\frac{\pi }{2} \right)\]. |
A) Statement-1 is true, Statement-2 is true and Statement-2 is correct explanation for statement- 1. done clear
B) Statement-1 is true, Statement-2 is true and Statement-2 is NOT the correct explanation for statement-1. done clear
C) Statement-1 is true, Statement-2 is false. done clear
D) Statement-1 is false, Statement-2 is true. done clear
View Answer play_arrowA) \[^{30}{{C}_{7}}\] done clear
B) \[^{30}{{C}_{8}}\] done clear
C) \[^{21}{{C}_{7}}\] done clear
D) \[^{21}{{C}_{8}}\] done clear
View Answer play_arrowA) \[\frac{3}{8}\] done clear
B) \[\frac{-8}{3}\] done clear
C) \[\frac{-3}{8}\] done clear
D) \[\frac{8}{3}\] done clear
View Answer play_arrowA) \[6-2\pi \] done clear
B) \[2\pi -6\] done clear
C) \[\pi -3\] done clear
D) \[3-\pi \] done clear
View Answer play_arrowA) if \[{{p}^{2}}-2q<0\] , then the equation has one real and two imaginary root. done clear
B) If \[{{p}^{2}}-2q\ge 0\] then the equation has all real roots. done clear
C) If \[{{p}^{2}}-2q>0\], then the equation has all real and distinct roots. done clear
D) If \[4{{p}^{3}}-27{{q}^{2}}>0\], then the equation has real and distinct roots. done clear
View Answer play_arrowA) \[(-5,2)\] done clear
B) \[(2,-5)\] done clear
C) \[(5,-2)\] done clear
D) \[(-2,5)\] done clear
View Answer play_arrowA) reflexive and symmetric but not transitive done clear
B) symmetric and transitive but not reflexive done clear
C) transitive but neither reflexive nor symmetric done clear
D) reflexive, symmetric and transitive done clear
View Answer play_arrowSTATEMENT-1: \[\sim (p\leftrightarrow \sim q)\] is equivalent to\[p\leftrightarrow q\]. |
STATEMENT-2: \[\sim (p\leftrightarrow \sim q)\] is a tautology. |
A) Statement-1 is true, statement-2, is true and statement-2 is correct explanation for statement-1. done clear
B) Statement-1 is true, Statement-2 is true and Statement-2 is NOT the correct explanation for Statement-1. done clear
C) Statement-1 is true, Statement-2 is false. done clear
D) Statement-1 is false, Statement-2 is true. done clear
View Answer play_arrowA) \[-3\] done clear
B) 0 done clear
C) 3 done clear
D) 9 done clear
View Answer play_arrowA) 10 done clear
B) 11 done clear
C) 12 done clear
D) 13 done clear
View Answer play_arrowA) \[4.783\,g/c{{m}^{3}}\] done clear
B) \[4.78\,g/c{{m}^{3}}\] done clear
C) \[4.7\,g/c{{m}^{3}}\] done clear
D) \[4.8\,g/c{{m}^{3}}\] done clear
View Answer play_arrowA) \[L{{T}^{-1}},L,T\] done clear
B) \[{{T}^{-1}},L{{T}^{-1}},{{T}^{-1}}\] done clear
C) \[L,L{{T}^{-1}},T\] done clear
D) \[T,T,T\] done clear
View Answer play_arrowA) 0 done clear
B) \[2\,m{{s}^{-1}}\] done clear
C) \[2\sqrt{2}m{{s}^{-2}}\] done clear
D) \[6\sqrt{2}\,m{{s}^{-2}}\] done clear
View Answer play_arrowA) during ascent decreases done clear
B) during decent decreases done clear
C) during ascent increases done clear
D) remain same done clear
View Answer play_arrowA) \[6\,\,J\] done clear
B) \[4\,\,J\] done clear
C) \[5\,\,J\] done clear
D) data insufficient done clear
View Answer play_arrowA) zero done clear
B) \[\frac{-16Gm}{r}\] done clear
C) \[\frac{-16Gm}{3r}\] done clear
D) \[\frac{-3Gm}{16r}\] done clear
View Answer play_arrowA) \[2\sqrt{2}\,rad/\sec \] done clear
B) \[2\,rad/\sec \] done clear
C) \[1\,rad/\sec \] done clear
D) \[4\,rad/\sec \] done clear
View Answer play_arrowA) must be open pipe done clear
B) must be closed organ pipe done clear
C) may be closed organ pipe done clear
D) none done clear
View Answer play_arrowA) positive done clear
B) negative done clear
C) zero done clear
D) data insufficient done clear
View Answer play_arrowA) \[\frac{q}{\sqrt{2\pi {{\varepsilon }_{0}}mR}}\] done clear
B) \[\frac{q}{\sqrt{4\pi {{\varepsilon }_{0}}mR}}\] done clear
C) \[\frac{3q}{\sqrt{2\pi {{\varepsilon }_{0}}mR}}\] done clear
D) \[\frac{\sqrt{3}q}{\sqrt{4\pi {{\varepsilon }_{0}}mR}}\] done clear
View Answer play_arrowA) for all values of H done clear
B) only if \[H>R/\sqrt{2}\] done clear
C) Only if \[H<R/\sqrt{2}\] done clear
D) \[H=R/\sqrt{2}\] done clear
View Answer play_arrowquestion_answer42) The potential difference between A and B in N following situation is:
A) \[12\,V\] done clear
B) \[7\,V\] done clear
C) \[20\,\,V\] done clear
D) \[14\,\,V\] done clear
View Answer play_arrowA) \[\frac{V}{3}\] done clear
B) \[\frac{V}{2}\] done clear
C) \[\frac{2}{9}V\] done clear
D) \[\frac{3}{4}V\] done clear
View Answer play_arrowA) It will align itself parallel to the magnetic field done clear
B) It will align itself perpendicular to the magnetic field. done clear
C) It will remain as before done clear
D) Its behavior cannot be predicted. done clear
View Answer play_arrowA) \[B/2\] done clear
B) B done clear
C) \[2B\] done clear
D) \[4B\] done clear
View Answer play_arrowA) \[3:1\] done clear
B) \[1:3\] done clear
C) \[1:2\] done clear
D) \[2:1\] done clear
View Answer play_arrowA) \[+80\,cm\] done clear
B) \[-80\,cm\] done clear
C) \[-24\,cm\] done clear
D) \[-100\,cm\] done clear
View Answer play_arrowA) \[0.5\,mm\] done clear
B) \[1.0\,mm\] done clear
C) \[1.5\,\,mm\] done clear
D) \[2.0\,\,mm\] done clear
View Answer play_arrowA) zero done clear
B) \[0.02\] done clear
C) \[0.03\] done clear
D) \[0.036\] done clear
View Answer play_arrowA) \[3\,m\] done clear
B) \[30\,m\] done clear
C) \[75\,m\] done clear
D) \[3000\,m\] done clear
View Answer play_arrowA) remains constant done clear
B) becomes more than two times done clear
C) becomes half done clear
D) becomes less than two times done clear
View Answer play_arrowA) \[1.2\,V\] done clear
B) \[2.4\,V\] done clear
C) \[3.6\,V\] done clear
D) \[4.8\,V\] done clear
View Answer play_arrowA) \[200\,cal\] done clear
B) \[180\,cal\] done clear
C) \[42\,cal\] done clear
D) \[160\,cal\] done clear
View Answer play_arrowA) a straight line passing through origin of positive gradient. done clear
B) a straight line of positive gradient, not passing through origin. done clear
C) a straight line of negative gradient, not passing through origin. done clear
D) none of the above done clear
View Answer play_arrowA) \[1000:1\] done clear
B) \[1:1000\] done clear
C) \[10:1\] done clear
D) \[1:10\] done clear
View Answer play_arrowA) \[{{L}_{H}}>{{L}_{Li}}\] and \[\left| {{E}_{H}} \right|>\left| {{E}_{Li}} \right|\] done clear
B) \[{{L}_{H}}={{L}_{Li}}\] and \[\left| {{E}_{H}} \right|<\left| {{E}_{Li}} \right|\] done clear
C) \[{{L}_{H}}={{L}_{Li}}\],and \[\left| {{E}_{H}} \right|>\left| {{E}_{Li}} \right|\] done clear
D) \[{{L}_{H}}<{{L}_{Li}}\] and \[\left| {{E}_{H}} \right|<\left| {{E}_{Li}} \right|\] done clear
View Answer play_arrowA) 2 done clear
B) 3 done clear
C) 1 done clear
D) 0 done clear
View Answer play_arrowA) \[564\,K\] done clear
B) \[{{273}^{o}}C\] done clear
C) \[{{819}^{o}}C\] done clear
D) \[{{1092}^{o}}C\] done clear
View Answer play_arrowA) \[F=0,\,\tau \ne 0\] done clear
B) \[F\ne 0,\,\tau =0\] done clear
C) \[F=0,\,\tau =0\] done clear
D) \[F\ne 0,\,\tau \ne 0\] done clear
View Answer play_arrowA) \[59,5Hz,{{10}^{3}}\] done clear
B) \[69,5Hz,{{10}^{3}}\] done clear
C) \[79,5Hz,{{10}^{3}}\] done clear
D) \[35,5Hz,{{10}^{2}}\] done clear
View Answer play_arrowA) \[0.36\,\,D\] done clear
B) \[0.62\,\,D\] done clear
C) \[0.51\] done clear
D) \[0.92\,\,D\] done clear
View Answer play_arrowA) \[_{24}Cr,\,Br\] done clear
B) \[_{21}Sc,\,Hg\] done clear
C) \[_{84}PO,\,Fr\] done clear
D) \[_{26}Fe,\,Zn\] done clear
View Answer play_arrowquestion_answer63) Diborane on reaction with ammonia (excess) at low temperature, gives
A) Inorganic benzene \[({{B}_{3}}{{N}_{3}}{{H}_{6}})\] done clear
B) \[{{[{{H}_{3}}N\to B{{H}_{2}}\leftarrow N{{H}_{3}}]}^{+}}{{[B{{H}_{4}}]}^{-}}\] done clear
C) Boron nitride \[{{(BN)}_{x}}\] done clear
D) \[[B{{H}_{2}}^{+}{{[{{H}_{3}}N\to B{{H}_{4}}\leftarrow N{{H}_{3}}]}^{-}}\] done clear
View Answer play_arrowA) \[-98.1\times {{10}^{2}}kJ\] done clear
B) \[-9.8\,kJ\] done clear
C) \[-39.2\,J\] done clear
D) \[-4.9\,kJ\] done clear
View Answer play_arrowquestion_answer65) Arrange the following molecules in decreasing order of basic character
A.\[Ce{{(OH)}_{3}}\] |
B.\[Dy{{(OH)}_{3}}\] |
C \[\Pr {{(OH)}_{3}}\] |
D.\[Lu{{(OH)}_{3}}\] |
A) A > B > C > D done clear
B) A > C > B > D done clear
C) D > C > B > A done clear
D) C > A > B > D done clear
View Answer play_arrowA) 15 done clear
B) 45 done clear
C) 30 done clear
D) 7 done clear
View Answer play_arrowquestion_answer67) Which of the following plot is correct for a real gas?
A) done clear
B) done clear
C) done clear
D) done clear
View Answer play_arrowquestion_answer68) The conjugate acid of \[[A1{{({{H}_{2}}O)}_{3}}{{(OH)}_{3}}]\] is
A) \[{{[A1{{({{H}_{2}}O)}_{2}}{{(OH)}_{4}}]}^{+}}\] done clear
B) \[{{[A1{{({{H}_{2}}O)}_{4}}{{(OH)}_{2}}]}^{+}}\] done clear
C) \[{{[A1{{({{H}_{2}}O)}_{2}}{{(OH)}_{4}}]}^{-}}\] done clear
D) \[{{[A1{{({{H}_{2}}O)}_{4}}{{(OH)}_{2}}]}^{-}}\] done clear
View Answer play_arrowquestion_answer69) Out of following which metal can be purified by Van Arkel method?
A) Ti done clear
B) Zr done clear
C) Hf done clear
D) All of these done clear
View Answer play_arrowquestion_answer70) When \[C{{O}_{2}}\] gas is passed into \[{{K}_{2}}Mn{{O}_{4}}\] solution
A) \[{{K}_{2}}Mn{{O}_{4}}\] converts into \[Mn\] done clear
B) \[M{{n}^{+6}}\] undergoes oxidation and reduction done clear
C) n-factor of \[M{{n}_{4}}^{2-}\] is 6 in this reaction done clear
D) Both [a] & [c] done clear
View Answer play_arrowA) \[0.57\] done clear
B) \[2\times {{10}^{-4}}\] done clear
C) \[1.75\] done clear
D) \[4\times {{10}^{-2}}\] done clear
View Answer play_arrowA) \[KCN\] done clear
B) \[KSCN\] done clear
C) \[{{K}_{4}}[Fe{{(CN)}_{6}}]\] done clear
D) \[{{K}_{3}}[Fe{{(CN)}_{6}}]\] done clear
View Answer play_arrowA) \[{{C}_{2}}{{H}_{4}}\] done clear
B) \[{{C}_{3}}{{H}_{6}}\] done clear
C) \[{{C}_{3}}{{H}_{4}}\] done clear
D) \[{{C}_{2}}{{H}_{6}}\] done clear
View Answer play_arrowquestion_answer74) \[Xe{{H}_{6}}+{{H}_{2}}O\to \] product. The product formed is (1 mole) (1 mole)
A) \[Xe{{O}_{2}}{{F}_{2}}\] done clear
B) \[XeO{{F}_{4}}\] done clear
C) \[Xe{{O}_{3}}\] done clear
D) \[XeO{{F}_{5}}\] done clear
View Answer play_arrowquestion_answer75) Out of following, in which process \[\Delta {{S}_{system}}\]is negative?
A) Mixing of gases done clear
B) Stretching of rubber done clear
C) Expansion of gas in vacuum done clear
D) Dissociation of \[PC{{l}_{5}}\] done clear
View Answer play_arrowA) 5 done clear
B) 4 done clear
C) 6 done clear
D) 2.8 done clear
View Answer play_arrowA) \[\frac{6}{5}\] done clear
B) \[\frac{2}{15}\] done clear
C) \[\frac{18}{5}\] done clear
D) \[\frac{12}{5}\] done clear
View Answer play_arrowquestion_answer78) Which of the following represents correct relationship of bond order?
A) \[{{N}_{2}}^{+}<{{N}_{2}}\] and \[N{{O}^{+}}<NO\] done clear
B) \[{{N}_{2}}^{+}<{{N}_{2}}\] and \[NO<N{{O}^{+}}\] done clear
C) \[{{N}_{2}}<{{N}_{2}}^{+}\] and \[N{{O}^{+}}<NO\] done clear
D) \[{{N}_{2}}<{{N}_{2}}^{+}\] and \[NO<N{{O}^{+}}\] done clear
View Answer play_arrowA. When P is very low |
B. When P is very high |
C. When P is moderate |
A) A only done clear
B) B only done clear
C) C only done clear
D) A & B only done clear
View Answer play_arrowa. \[NO+B{{r}_{2}}\overset{fast}{leftrightarrows}NOB{{r}_{2}}\] |
b. \[NOB{{r}_{2}}+NO\overset{slow}{leftrightarrows}2NOBr\] |
A) \[r=k{{[NO]}^{2}}[B{{r}_{2}}]\] done clear
B) \[r=k[NO][B{{r}_{2}}]\] done clear
C) \[r=k[NOB{{r}_{2}}][NO]\] done clear
D) \[r=k[NO]{{[B{{r}_{2}}]}^{2}}\] done clear
View Answer play_arrowquestion_answer81) Decreasing order of basic strength of the following molecules
A. |
B. |
C. |
D. |
A) A < C < B < A done clear
B) C < B > A > D done clear
C) D > A > B > C done clear
D) C > D> B > A done clear
View Answer play_arrowquestion_answer82) Stability of following carbanion can be explained by
(i) Inductive effect |
(ii) Mesomeric effect |
(iii) S-character |
A) Only (ii) done clear
B) (ii) and (iii) done clear
C) (i), (ii), and (iii) done clear
D) (i) and (iii) done clear
View Answer play_arrowquestion_answer83) Which of the following will not show tautomerism?
A) done clear
B) done clear
C) done clear
D) done clear
View Answer play_arrowquestion_answer84) The following pair of compound represent
A) Same compound done clear
B) Diastereomers done clear
C) Enantiomers done clear
D) Structural isomers done clear
View Answer play_arrowquestion_answer85) The reaction least likely to occur
A) done clear
B) done clear
C) done clear
D) done clear
View Answer play_arrowquestion_answer86) . The best reagent B for the above conversion is
A) \[{{N}_{2}}{{H}_{4}}/KOH\] done clear
B) \[{{N}_{2}}B{{H}_{4}}\] in \[{{C}_{2}}{{H}_{5}}OH\] done clear
C) DIBAL-H done clear
D) \[LiAI{{H}_{4}}\] done clear
View Answer play_arrowquestion_answer87) compound [B] would be:
A) done clear
B) done clear
C) done clear
D) done clear
View Answer play_arrowquestion_answer88) product. The product will be
A) done clear
B) done clear
C) done clear
D) done clear
View Answer play_arrowquestion_answer89) Which of the following compounds, if any are epimers?
(i) |
(ii) |
(iii) |
(iv) |
A) (i) & (iv) done clear
B) (ii) & (iii) done clear
C) (i) & (iii) done clear
D) (iii) & (iv) done clear
View Answer play_arrowquestion_answer90) Which of the following is used for inducing sleep?
A) Paracetamol done clear
B) Chloroquine done clear
C) Bithional done clear
D) Barbituric acid derivative done clear
View Answer play_arrowYou need to login to perform this action.
You will be redirected in
3 sec