A) \[2x-y-10z=9\] done clear
B) \[2x-y-9z=10\] done clear
C) \[2x-y+10z=11\] done clear
D) \[2x-y+7z=11\] done clear
View Answer play_arrowA) \[\frac{1}{2}\] done clear
B) \[\frac{1}{5}\] done clear
C) \[\frac{1}{10}\] done clear
D) \[\frac{1}{15}\] done clear
View Answer play_arrowquestion_answer3) Let \[f;[-1,3]\to [-8,\,72]\] be defined as \[f(x)=4{{x}^{3}}-12x\],then \[f\] is
A) injective but not surjective done clear
B) injective as well as surjective done clear
C) neither injective nor surjective done clear
D) surjective but not injective done clear
View Answer play_arrowA) \[\frac{1}{\sqrt{2}}\] done clear
B) \[\sqrt{2}\] done clear
C) \[2\sqrt{2}\] done clear
D) \[\frac{1}{2\sqrt{2}}\] done clear
View Answer play_arrowA) last term of the series is \[0\]. done clear
B) last term of the series is \[\frac{1}{5}\] done clear
C) number of terms of the series are \[42\]. done clear
D) number of terms of the series are \[40\]. done clear
View Answer play_arrowA) If Gopal get a first class, then he does not works hard. done clear
B) If Gopal does not get a first class, then he works hard. done clear
C) If Gopal does not get a first class, then he does not work hard. done clear
D) If Gopal does not work hard, then he does not get a first class. done clear
View Answer play_arrowA) \[\frac{-1}{2}\] done clear
B) \[0\] done clear
C) \[2\sqrt{2}\] done clear
D) \[2\] done clear
View Answer play_arrowA) \[2r-1\] done clear
B) \[2r+1\] done clear
C) \[3r\] done clear
D) \[r+1\] done clear
View Answer play_arrowA) 16 done clear
B) 64 done clear
C) 256 done clear
D) 512 done clear
View Answer play_arrowA) \[\frac{4}{{{x}^{2}}}+\frac{2}{{{y}^{2}}}=1\] done clear
B) \[\frac{4}{{{x}^{2}}}-\frac{2}{{{y}^{2}}}=1\] done clear
C) \[\frac{2}{{{x}^{2}}}-\frac{4}{{{y}^{2}}}=1\] done clear
D) \[\frac{2}{{{x}^{2}}}+\frac{4}{{{y}^{2}}}=1\] done clear
View Answer play_arrowA) \[\frac{\pi }{6}\] done clear
B) \[\frac{\pi }{4}\] done clear
C) \[\frac{\pi }{3}\] done clear
D) \[\frac{\pi }{2}\] done clear
View Answer play_arrowA) 1 done clear
B) 2 done clear
C) 3 done clear
D) 4 done clear
View Answer play_arrowA) \[-1<k<1\] done clear
B) \[-2<k<2\] done clear
C) \[k\ne 0\] done clear
D) \[k=0\] done clear
View Answer play_arrowA) \[\frac{1}{3}\] done clear
B) \[\frac{1}{9}\] done clear
C) 3 done clear
D) 9 done clear
View Answer play_arrowA) \[x+y=1\] done clear
B) \[x-y=1\] done clear
C) \[x+y=\frac{9}{2}\] done clear
D) \[x-y=\frac{3}{2}\] done clear
View Answer play_arrowquestion_answer16) The standard deviation of the numbers a and b is
A) \[\frac{\sqrt{{{a}^{2}}+{{b}^{2}}}}{2}\] done clear
B) \[\frac{\left| a-b \right|}{2}\] done clear
C) \[\left| a-b \right|\] done clear
D) \[\frac{\sqrt{{{a}^{2}}+{{b}^{2}}}}{2}\] done clear
View Answer play_arrowA) \[[-1,\,1]\] done clear
B) \[(-1,\,0]\] done clear
C) \[[0,\,1)\] done clear
D) \[(-1,\,1)\] done clear
View Answer play_arrowA) \[{{y}^{2}}=1+\cos x\] done clear
B) \[y={{\sin }^{2}}x\] done clear
C) \[{{y}^{2}}\sin x=1+\cos x\] done clear
D) \[{{y}^{2}}=\sin x\] done clear
View Answer play_arrowA) 42 done clear
B) 34 done clear
C) 43 done clear
D) 24 done clear
View Answer play_arrowA) 9 done clear
B) 8 done clear
C) 4 done clear
D) 2 done clear
View Answer play_arrowquestion_answer21) The complete set of real values of \[x\] for which \[{{e}^{x}}>1+x\], is equal to
A) \[(-\infty ,\,\infty )\] done clear
B) \[(0,\,\infty )\] done clear
C) \[(-\infty ,\,\,0)\] done clear
D) \[(-\infty ,\,\,0)\cup (0,\,\infty )\] done clear
View Answer play_arrowA) \[\frac{3}{4}\] done clear
B) \[\frac{5}{6}\] done clear
C) \[\frac{1}{4}\] done clear
D) \[\frac{3}{7}\] done clear
View Answer play_arrowA) \[3\sqrt{\frac{7}{2}}\] done clear
B) \[\sqrt{14}\] done clear
C) \[\sqrt{\frac{19}{2}}\] done clear
D) \[\frac{3}{\sqrt{2}}\] done clear
View Answer play_arrowA) \[3y+1=0\] done clear
B) \[y-3=0\] done clear
C) \[y+3=0\] done clear
D) \[3y-1=0\] done clear
View Answer play_arrowA) 126 done clear
B) 220 done clear
C) 280 done clear
D) 144 done clear
View Answer play_arrowA) \[\lambda =\mu \] done clear
B) \[\lambda +\mu =0\] done clear
C) \[\lambda \ne \mu \] done clear
D) \[\sqrt{\lambda }+\sqrt{\mu }=1\] done clear
View Answer play_arrowquestion_answer27) If the function\[f(x)=\left\{ \begin{matrix} ax+b & -\infty
A) \[a=-1,p=\frac{-4}{9}\] done clear
B) \[b=2,q=\frac{5}{3}\] done clear
C) \[a=1,\,b=2\] done clear
D) \[a=-1,q=\frac{-5}{3}\] done clear
View Answer play_arrowA) 1 done clear
B) 3 done clear
C) 5 done clear
D) 2 done clear
View Answer play_arrowquestion_answer29) The graph of function \[f(x)=\frac{{{x}^{5}}}{20}-\frac{{{x}^{4}}}{12}+5\] has
A) no local extremum, one point of inflection. done clear
B) two local maximum, one local minimum, two point of inflection. done clear
C) one local maximum, one local minimum, one point of inflection. done clear
D) one local maximum, one local minimum, two point of inflection. done clear
View Answer play_arrowA) 220 done clear
B) 215 done clear
C) 210 done clear
D) 205 done clear
View Answer play_arrowA) \[9%\] done clear
B) \[7%\] done clear
C) \[4%\] done clear
D) \[2%\] done clear
View Answer play_arrowA) 4 done clear
B) 2 done clear
C) 18 done clear
D) 6 done clear
View Answer play_arrowA) \[0.25\,m\] done clear
B) \[0.8\,m\] done clear
C) \[0.5\,m\] done clear
D) \[1\,\,m\] done clear
View Answer play_arrowA) \[39\,J\] done clear
B) \[-39\,J\] done clear
C) zero done clear
D) data insufficient done clear
View Answer play_arrowA) \[\frac{3g}{2}\] done clear
B) \[\frac{2g}{3}\] done clear
C) \[\frac{g}{2}\] done clear
D) \[\frac{g}{3}\] done clear
View Answer play_arrowA) \[\sqrt{\frac{Gm}{r}}\] done clear
B) \[\sqrt{\frac{Gm}{3r}}\] done clear
C) \[\sqrt{\frac{Gm}{r\sqrt{3}}}\] done clear
D) \[\sqrt{\frac{3Gm}{r}}\] done clear
View Answer play_arrowA) \[4\sec \] done clear
B) \[2\sec \] done clear
C) \[3\sec \] done clear
D) \[1\sec \] done clear
View Answer play_arrowA) \[\sqrt{\frac{21}{200}}\] done clear
B) \[\sqrt{\frac{1}{8}}\] done clear
C) \[\sqrt{\frac{200}{21}}\] done clear
D) \[\sqrt{\frac{8}{1}}\] done clear
View Answer play_arrowA) \[3V/2\] done clear
B) \[V/4\] done clear
C) \[V/2\] done clear
D) \[V\] done clear
View Answer play_arrowquestion_answer40) The potential field of an electric field\[\vec{E}=(y\hat{i}+x\hat{j})\] is
A) \[V=-xy+\] constant done clear
B) \[V=-(x+y)+\] constant done clear
C) \[V=-({{x}^{2}}+{{y}^{2}})+\] constant done clear
D) \[V=\] constant done clear
View Answer play_arrowA) \[0.5\,\Omega \] done clear
B) \[1\,\Omega \] done clear
C) \[1.5\,\,\Omega \] done clear
D) \[2\,\,\Omega \] done clear
View Answer play_arrowA) \[4\mu C\] done clear
B) \[6\mu C\] done clear
C) \[1\mu C\] done clear
D) zero done clear
View Answer play_arrowA) done clear
B) done clear
C) done clear
D) done clear
View Answer play_arrowA) zero done clear
B) \[\frac{2\sqrt{2}{{\mu }_{0}}i}{\pi L}\] done clear
C) \[\frac{{{\mu }_{0}}i}{\pi L}\] done clear
D) \[\frac{\sqrt{2}{{\mu }_{0}}i}{\pi L}\] done clear
View Answer play_arrowA) done clear
B) done clear
C) done clear
D) done clear
View Answer play_arrowA) \[\frac{{{\mu }_{0}}\lambda vT}{4}\] done clear
B) \[\frac{{{\mu }_{0}}\lambda v{{r}^{2}}}{4}\] done clear
C) \[\frac{{{\mu }_{0}}\lambda vr}{2}\] done clear
D) zero done clear
View Answer play_arrowA) \[n<\frac{1}{\sqrt{2}}\] done clear
B) \[n<\sqrt{2}\] done clear
C) \[n>\sqrt{\frac{1}{\sqrt{2}}}\] done clear
D) \[n<\sqrt{2}\] done clear
View Answer play_arrowA) \[2\lambda \] done clear
B) \[\lambda \] done clear
C) \[\frac{2}{3}\lambda \] done clear
D) \[\frac{\lambda }{3}\] done clear
View Answer play_arrowA) 200 done clear
B) 100 done clear
C) \[100\sqrt{2}\] done clear
D) 283 done clear
View Answer play_arrowA) \[5\times {{10}^{-4}}s\] done clear
B) \[4.5\times {{10}^{-3}}s\] done clear
C) \[5\times {{10}^{-8}}s\] done clear
D) \[4.5\times {{10}^{-6}}s\] done clear
View Answer play_arrowA) \[{{2}^{1/3}}:1\] done clear
B) \[1:{{3}^{1/2}}\] done clear
C) \[{{3}^{1/3}}:1\] done clear
D) \[1:{{2}^{1/3}}\] done clear
View Answer play_arrowA) \[{{\lambda }_{K}}-{{\lambda }_{C}}\] increase done clear
B) \[{{\lambda }_{K}}-{{\lambda }_{C}}\] decrease done clear
C) \[{{\lambda }_{K}}\] increase done clear
D) \[{{\lambda }_{K}}\] decrease done clear
View Answer play_arrowA) \[{{102}^{o}}C\] done clear
B) \[102K\] done clear
C) \[{{129}^{o}}C\] done clear
D) \[129K\] done clear
View Answer play_arrowA) length 1 m and diameter 20 mm done clear
B) length 2 m and diameter 20 mm done clear
C) length 2 m and diameter 40 mm done clear
D) length 1 m and diameter 40 mm done clear
View Answer play_arrowA) \[5\times {{10}^{-2}}N/m\] done clear
B) \[3\times {{10}^{-2}}N/m\] done clear
C) \[1.5\times {{10}^{-2}}N/m\] done clear
D) \[1.2\times {{10}^{-2}}N/m\] done clear
View Answer play_arrowA) \[F/2\] done clear
B) \[2F\] done clear
C) \[4F\] done clear
D) \[F/4\] done clear
View Answer play_arrowA) total average energy in one loop is constant. done clear
B) total average energy in halfloop( between node and antinode) is constant. done clear
C) total average energy in any section of loop is constant. done clear
D) potential energy in any section of loop is proportional to square of slope of that section of string. done clear
View Answer play_arrowA) 1 done clear
B) 3 done clear
C) 9 done clear
D) 12 done clear
View Answer play_arrowquestion_answer59) The time period of a freely suspended magnet does not depend on:
A) its length done clear
B) pole straight done clear
C) the horizontally component or earth's magnetic field done clear
D) length of suspension wire. done clear
View Answer play_arrowA) \[1.5\,m/s\] done clear
B) \[1.5\,c\,m/s\] done clear
C) \[15\,\,m/s\] done clear
D) \[15\,\,cm/s\] done clear
View Answer play_arrowA) \[1.44\] done clear
B) \[1.77\] done clear
C) \[1.33\] done clear
D) \[1.55\] done clear
View Answer play_arrowA) \[5:1\] done clear
B) \[25:4\] done clear
C) \[20:1\] done clear
D) \[5:4\] done clear
View Answer play_arrowA) \[10.44\] done clear
B) \[4.0\] done clear
C) \[3.72\] done clear
D) \[2.92\] done clear
View Answer play_arrowA) \[s{{p}^{2}},s{{p}^{3}},s{{p}^{3}}d,sp\] done clear
B) \[s{{p}^{3}},s{{p}^{3}}d,s{{p}^{3}}d,sp\] done clear
C) \[s{{p}^{3}},s{{p}^{3}}{{d}^{2}},s{{p}^{3}}d,s{{p}^{2}}\] done clear
D) \[s{{p}^{2}},s{{p}^{3}}d,s{{p}^{3}}{{d}^{2}},s{{p}^{2}}\] done clear
View Answer play_arrowA) \[2\sqrt{2}\] done clear
B) \[4\sqrt{2}\] done clear
C) \[\sqrt{2}\] done clear
D) \[\frac{1}{\sqrt{2}}\] done clear
View Answer play_arrowA) \[1-\frac{5{{K}_{c}}}{{{V}^{5}}}\] done clear
B) \[\frac{5{{K}_{c}}}{{{V}^{5}}}\] done clear
C) \[1-\frac{5K_{c}^{2}}{{{V}^{5}}}\] done clear
D) \[1-\frac{4K_{c}^{2}}{{{V}^{4}}}\] done clear
View Answer play_arrowA) \[1.8\times {{10}^{-19}}\] done clear
B) \[5.55\times {{10}^{-10}}\] done clear
C) \[5.55\times {{10}^{-5}}\] done clear
D) \[1.8\times {{10}^{-5}}\] done clear
View Answer play_arrow\[2NO(g)+{{O}_{2}}(g)\xrightarrow[{}]{}2N{{O}_{2}}(g)\,;\] \[\Delta {{H}^{o}}=-114\,kJ/mole\] |
\[4N{{O}_{2}}(g)+{{O}_{2}}(g)\xrightarrow[{}]{{}}2{{N}_{2}}{{O}_{2}}(g)\,;\] \[\Delta {{H}^{o}}=-102.6\,kJ/mole\] |
A) \[15.1\] done clear
B) \[30.2\] done clear
C) \[-36.2\] done clear
D) \[-46.8\] done clear
View Answer play_arrowA) \[1.5\,L\] done clear
B) \[0.5\,L\] done clear
C) \[1.95\,L\] done clear
D) \[2\,L\] done clear
View Answer play_arrowA) \[k=\frac{2.303}{t}\log \frac{{{P}_{\infty }}}{({{P}_{{{\infty }^{-}}}}{{P}_{t}})}\] done clear
B) \[k=\frac{2.303}{t}\log \left( \frac{2{{P}_{\infty }}}{({{P}_{{{\infty }^{-}}}}{{P}_{t}})} \right)\] done clear
C) \[k=\frac{2.303}{t}\log \left( \frac{2{{P}_{\infty }}}{3\left( {{P}_{{{\infty }^{-}}}}{{P}_{t}} \right)} \right)\] done clear
D) \[k=\frac{2.303}{t}\log \left( \frac{{{P}_{\infty }}}{{{P}_{t}}} \right)\] done clear
View Answer play_arrowA) \[{{A}_{4}}B\] done clear
B) \[A{{B}_{4}}\] done clear
C) \[{{A}_{2}}{{B}_{4}}\] done clear
D) \[{{A}_{4}}{{B}_{2}}\] done clear
View Answer play_arrowA) \[{{K}_{1}}[{{N}_{2}}]{{[{{H}_{2}}]}^{3}}-{{K}_{2}}{{[N{{H}_{3}}]}^{2}}\] done clear
B) \[2{{K}_{1}}[{{N}_{2}}]{{[{{H}_{2}}]}^{3}}-2{{K}_{2}}{{[N{{H}_{3}}]}^{2}}\] done clear
C) \[2{{K}_{2}}{{[N{{H}_{3}}]}^{2}}-2{{K}_{1}}[{{N}_{2}}]{{[{{H}_{2}}]}^{3}}\] done clear
D) \[{{K}_{2}}{{[N{{H}_{3}}]}^{2}}-{{K}_{1}}[{{N}_{2}}]{{[{{H}_{2}}]}^{3}}\] done clear
View Answer play_arrowA) \[7.39\] atm done clear
B) \[73.9\] atm done clear
C) \[2.463\] atm done clear
D) \[24.63\] atm done clear
View Answer play_arrowquestion_answer74) Out of following which graph represent multilayer formation in adsorption?
A) done clear
B) done clear
C) done clear
D) All of these done clear
View Answer play_arrowquestion_answer75) The correct sequence of the stability of following complexes is
A) \[{{[Cu{{(N{{H}_{3}})}_{6}}]}^{+2}}<{{[Cu{{(N{{H}_{3}})}_{4}}(en)]}^{+2}}\]\[<{{[Cu{{(N{{H}_{3}})}_{2}}{{(en)}_{2}}]}^{+2}}\] done clear
B) \[{{[Cu{{(N{{H}_{3}})}_{6}}]}^{+2}}<{{[Cu{{(N{{H}_{3}})}_{4}}(en)]}^{+2}}\]\[={{[Cu{{(N{{H}_{3}})}_{2}}{{(en)}_{2}}]}^{+2}}\] done clear
C) \[{{[Cu{{(N{{H}_{3}})}_{6}}]}^{+2}}>{{[Cu{{(N{{H}_{3}})}_{4}}(en)]}^{+2}}\]\[{{[Cu{{(N{{H}_{3}})}_{2}}{{(en)}_{2}}]}^{+2}}\] done clear
D) \[{{[Cu{{(N{{H}_{3}})}_{2}}]}^{+2}}>{{[Cu{{(N{{H}_{3}})}_{4}}(en)]}^{+}}\]\[={{[Cu{{(N{{H}_{3}})}_{2}}{{(en)}_{2}}]}^{+2}}\] done clear
View Answer play_arrowA) Metal A can reduce BO only done clear
B) Metal A can reduce AO only done clear
C) Metal A and B can reduce each other simultaneously done clear
D) Neither A nor B can reduce the oxide of each other's oxide done clear
View Answer play_arrowquestion_answer77) Chromium is obtained by reducing concentrated chromite ore with
A) Red hot coke done clear
B) Gaseous hydrogen done clear
C) Aluminium powder done clear
D) Carbon monoxide done clear
View Answer play_arrowquestion_answer78) In which of the following compounds B-F bond length is shortest?
A) \[B{{F}_{4}}^{-}\] done clear
B) \[{{H}_{3}}N\to B{{F}_{3}}\] done clear
C) \[B{{F}_{3}}\] done clear
D) \[B{{F}_{3}}\leftarrow N\,M{{e}_{3}}\] done clear
View Answer play_arrowquestion_answer79) Which one of the following has highest thermal stability?
A) \[C{{s}_{2}}C{{O}_{3}}\] done clear
B) \[R{{b}_{2}}C{{O}_{3}}\] done clear
C) \[{{K}_{2}}C{{O}_{3}}\] done clear
D) \[N {{a}_{2}}C{{O}_{3}}\] done clear
View Answer play_arrowA) All \[s{{p}^{2}}\] hybridised done clear
B) Three \[s{{p}^{2}}\] and one \[s{{p}^{3}}\] hybridised done clear
C) One \[s{{p}^{2}}\] and three \[s{{p}^{3}}\] hybridised done clear
D) Two \[s{{p}^{2}}\] and two \[s{{p}^{3}}\] hybridized done clear
View Answer play_arrowquestion_answer81) . Major product will be(Note : \[{{C}^{*}}\] is \[^{14}C\])
A) done clear
B) done clear
C) Both [a] & [b] in equal amount done clear
D) Elimination reaction will not take place done clear
View Answer play_arrowquestion_answer82) Optical rotation produced by is \[{{32}^{o}}\], then that compound by is
A) \[-{{32}^{o}}\] done clear
B) \[{{16}^{o}}\] done clear
C) \[{{0}^{o}}\] done clear
D) \[+{{32}^{o}}\] done clear
View Answer play_arrowquestion_answer83) . Which sequence should be followed to carry out above conversion?
A) \[KOD/{{D}_{2}}O,\,{{H}^{+}}/\Delta ,\,LiA1\,\,\,\,\,\,\,\,{{H}_{4}}\] done clear
B) \[{{H}^{+}}/\Delta ,KOD/{{D}_{2}}O,\,LiA1\,\,\,\,\,\,\,{{H}_{4}}\] done clear
C) \[KOD/{{D}_{2}}O,LiA1{{H}_{4}}{{H}^{+}}/\Delta \] done clear
D) \[LiA1{{H}_{4}},{{H}^{+}}/\Delta ,KOD/{{D}_{2}}O\] done clear
View Answer play_arrowquestion_answer84) Which of the following is an elastomer?
A) Buna-S done clear
B) Polyethylene done clear
C) Nylon-66 done clear
D) Bakelite done clear
View Answer play_arrowquestion_answer85) Which of the following is capable of showing geometrical isomerism?
A) done clear
B) done clear
C) done clear
D) done clear
View Answer play_arrowquestion_answer86) Arrange the following carbocation in the increasing order of their stability
A) \[I<II>III\] done clear
B) \[I>II=III\] done clear
C) \[I>III>II\] done clear
D) \[III>I>II\] done clear
View Answer play_arrowquestion_answer87) Which starting material should be used to produce me compound shown below?
A) done clear
B) done clear
C) done clear
D) done clear
View Answer play_arrowquestion_answer88) In the given reaction. The major is
A) done clear
B) done clear
C) done clear
D) done clear
View Answer play_arrowquestion_answer89) In the given reaction. The amide is
A) N-phenyl ethanamide done clear
B) N-methyl-N-phenyl methanamide done clear
C) N-methyl benzamide done clear
D) Mixture of [a] & [b] done clear
View Answer play_arrowA) In between \[1.8\] and \[6.0\] done clear
B) In between \[6.0\] and \[9.2\] done clear
C) \[<1.8\] done clear
D) \[>9.2\] done clear
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