InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
STATEMENT-1: 2-butanol is a chiral molecule. STATEMETN-2: 2-butanol have chiral carbon in it.A. Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1.B. Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-12C. Statement-1 is True, Statement-2 is False.D. Statement-1 is False, Statement-2 is True. |
| Answer» Correct Answer - b | |
| 52. |
Which of the following paris of compound may be regarded both as functional isomer and position isomer ?A. Benzyl alcohol and methoxy benseneB. o- cresol and p- cresolC. Benzyl alcohol and o- cresolD. Benzyl alchol and benzyl methyl ether |
| Answer» Correct Answer - C | |
| 53. |
How many ring chain isomers are possible for `C_(3)H_(6)`.A. 2B. 3C. 4D. 5 |
| Answer» Correct Answer - A | |
| 54. |
An unknown compound weighin 4.2 gm is dissolved in enotgh carbon tetrachloride to make a total volume of 250 cc. The observed rotation of this solution is `+357.75^(@)` in a 25 cm cell using the sodium D line. But if 4.2 gm is dissolved in 125 cc we observed rotation is `+355.50^(@)` calculate specific rotation for this compouns. |
| Answer» Correct Answer - 9 | |
| 55. |
How many total number of structural isomers are possible for `C_(4)H_(7)Cl` having parent chain of four carbon? |
| Answer» Correct Answer - 7 | |
| 56. |
Which is the lowest energy conformation of butane ?A. B. C. D. |
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Answer» Correct Answer - c Anti conformation of butane is most stable and rewuire lowest energy. |
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| 57. |
Which of the following are correct statement regarding these molecules. A. Compound I and II are diastereomersB. Compound II and IV are enantiomersC. Compound I and III are enantimersD. Compound III and IV are homomers |
| Answer» Correct Answer - A::B::C | |
| 58. |
Asnwer the following queestion based o given reaction. How many fractions are present in fractions distiallation?A. 4B. 5C. 6D. 8 |
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Answer» Correct Answer - b (iii) and (vii) |
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| 59. |
Which of the following compounds might be useful to the chemist trying to increase the optical purity of the (d) sample ?A. B. C. D. |
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Answer» Correct Answer - b Optically active compounds are used for separtion or resolution of `dl//(+-)` mixture. |
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| 60. |
Consider the following compounds : Choose the correct statements from the following.A. I,II and III are functional isomersB. I and II are position isomersC. III and IV are chain isomersD. III and IV are metamers |
| Answer» Correct Answer - A::D | |
| 61. |
Which of the following molecules is/are chiral ? A. IB. IIC. IIID. I,II |
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Answer» Correct Answer - d Compound which do not have plane and centre of symmetry are optically active. |
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| 62. |
Which of the following molecules is (are) chiral ? A. I and IIB. III and IVC. II, IV and VID. I, II, III and VI |
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Answer» Correct Answer - d Compound do not have plane & centre of symmetry are known as optically active compounds. |
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| 63. |
The correct statements `(s)` about the compound given below is/are: A. Compound is optically activeB. Compound possesses center of symmetryC. Compound possesses plane of symmetryD. Compounds possesses axis of symmetry |
| Answer» Correct Answer - A::D | |
| 64. |
Asnwer the following queestion based o given reaction. Total number of theretically products (includeing stereo ) are :A. 4B. 6C. 8D. 10 |
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Answer» Correct Answer - c (i), and (viii) |
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| 65. |
Which of the following molecules are chiral?A. B. C. D. |
| Answer» Correct Answer - B::C::D | |
| 66. |
Identify the compound which has a stereo centre.A. B. C. D. |
| Answer» Correct Answer - A::B::D | |
| 67. |
Which of the following represents a pair of enantiomes?A. B. C. D. |
| Answer» Correct Answer - A::B | |
| 68. |
Which of the following will show optical isomerism?A. B. C. D. |
| Answer» Correct Answer - A::C::D | |
| 69. |
Which of the following compounds exhibit optical isomerism?A. B. `H_(2)C=C=CH_(2)`C. D. |
| Answer» Correct Answer - A::C | |
| 70. |
Assertion (A): Pentane and `3` methyl pentane are chain isomers. Reason (R ): Pentane is a straight-chain alkane while `3`-methyl pentane is branched-chain alkane.A. both (A) and (R ) are true and (R ) is the correct explanation for (A).B. both (A) and (R ) are true and (R ) is not the true explanation for (A)C. (A) is true, but (R ) is false.D. (A) is false and (R ) is true. |
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Answer» Correct Answer - D (A) is false. They are homologues, since the number of `C` atoms in pentane and `3` methyl `1` pentane is not same, they cannot be isomers. (R ) is true. |
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| 71. |
Which of the following can exhibit cis-trans isomerism?A. HC=CHB. ClCH=CHClC. `CH_(3).CHCl.COOH`D. `ClCH_(2)-CH_(2)Cl` |
| Answer» Correct Answer - B | |
| 72. |
The meso form of 2,3 4- pentanetriol is :A. B. C. D. Both (b) and ( c) |
| Answer» Correct Answer - D | |
| 73. |
Which of the following compounds are meso forms ? A. 1 onlyB. 3 onlyC. 1 and 2D. 2 and 3 |
| Answer» Correct Answer - B | |
| 74. |
Identify the molecule which is meso.A. B. C. D. |
| Answer» Correct Answer - A | |
| 75. |
Find outmost stabilise conformer of following molecule. A. B. C. D. |
| Answer» Correct Answer - B | |
| 76. |
Which of the following is the most stabilised conformer of ?A. B. C. D. |
| Answer» Correct Answer - C | |
| 77. |
Arrange the following in the increasing order of expected enol content. i. `CH_(3)COCH_(2)CHO` ii. `CH_(3)COCH_(3)` iii. `CH_(3)CHO` iv. `CH_(3)COCH_(2)COCH_(3)`A. `iii lt ii lt iv`B. `iii lt ii lt i lt iv`C. `i lt iv lt ii lt iii`D. `iv lt i lt ii lt iii` |
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Answer» Correct Answer - B Order of enol content: Aldehyde lt Ketone lt Keto-aldehyde lt Diketone. `(iii lt ii lt i lt iv)` |
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| 78. |
The structure below are :- A. Not isomersB. Conformational isomersC. Cis-trans isomersD. Structural isomers |
| Answer» Correct Answer - D | |
| 79. |
`CH_(3)CH_(2)CH(CHO)CH_(2)CH_(3) and CH_(3)CH(CHO) CH_(2)CH_(2)CH_(3)` are :-A. Chain isomerB. Position isomerC. MetamerismD. Functional isomer |
| Answer» Correct Answer - A | |
| 80. |
Find out relation between the following compounds:A. B. C. `CH_(3)CH_(2)CH_(2)underset(COOH)underset(|)(CHCH_(3)) and CH_(3)CH_(2)underset(COOH)underset(|)(CHCH_(2)CH_(3))`D. |
| Answer» Correct Answer - A::B::C | |
| 81. |
Incorredt relation between given compounds are A. Both are geometrical isomersB. Both are enantiomersC. Both are optical isomersD. Both are diastereomers |
| Answer» Correct Answer - b | |
| 82. |
The relation between given compound is :- A. Chain isomerismB. Position isomerismC. Functional isomerismD. Metamerism |
| Answer» Correct Answer - C | |
| 83. |
Find out relation between I and II : A. enantiomersB. distereomersC. homomersD. structural isomers |
| Answer» Correct Answer - B | |
| 84. |
Find out relation between two compounds: A. enantiomersB. homomersC. diastereomersD. none of these |
| Answer» Correct Answer - B | |
| 85. |
Identify relation between these two compound A. HomomersB. enantiomersC. diastereomersD. different compounds |
| Answer» Correct Answer - B | |
| 86. |
Identify relation that is incorrectA. B. C. D. |
| Answer» Correct Answer - C | |
| 87. |
Analyes the following wing pairs of compounds. Write 1, if they are tautomers. Write 2, id they are metamers. Write 3, if they are position isomers. Write 4, id they are functional group isomers. Write 5, if they are chain siomers. Write 6, if they are not isomers. |
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Answer» Correct Answer - 5642 (a) Functional group containing carbon are counted at 1 st position. They are chain isomers (5) (b) Molecular formular is not same (6) (c ) Function group has been changed, so these are example of functional isomers (4) (d) These are metamers (2) |
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| 88. |
Metamers of this compounds is/are :A. B. C. D. |
| Answer» Correct Answer - a,d | |
| 89. |
Which of the following is a pair of metamers ?A. `CH_(3)-CH_(2)-overset(O)overset(||)(C)-OH and CH_(3)-overset(O)overset(||)(C)-O-CH_(3)`B. `CH_(3)-overset(O)overset(||)(C)-O-CH_(3) and H-overset(O)overset(||)(C)-O-CH_(2)CH_(3)`C. `CH_(3)-CH_(2)-overset(O)overset(||)(C)-CH_(3) and H-overset(O)overset(||)(C)-CH_(3)-CH_(2)-CH_(3)`D. |
| Answer» Correct Answer - B | |
| 90. |
Select the pair of metamers from the following :A. B. C. D. |
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Answer» Correct Answer - b Pair (a) are functional isomers. |
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| 91. |
Which of the following compounds shown tautomerism?A. `NH_(2)-overset(O) overset(||)C-NH_(2)`B. `NH_(2)-overset(S)overset(||)C-NH_(2)`C. `CH_(3)-overset(O) overset(||)C-CH_(3)`D. |
| Answer» Correct Answer - A::B::C::D | |
| 92. |
Tautomerism is exhibited by:A. B. C. D. |
| Answer» Correct Answer - A::C::D | |
| 93. |
Among the given structure which can exhibit tautomerism ?A. I onlyB. II onlyC. I and IIID. II and III |
| Answer» Correct Answer - B | |
| 94. |
Which compound show tautomerism :A. B. C. D. none of these |
| Answer» Correct Answer - A::C | |
| 95. |
Statement-II E-cyclopentadecene is having more `DeltaH_(C)` (Heat of combustion) than Z isomer. Statement II : E-cyclopentadecen is more stable than Z isomer.A. If both statement-I and statement II are true & the statement II is a correct explanation of the statement IB. If both statemetn -I and Statement II are True and Statement II is not a correct explanation of the Statement IC. If Statement -I is True but the Statement -II is falseD. If Statement -I is false but the Statement -II is True. |
| Answer» Correct Answer - A | |
| 96. |
But-1-yne and buta-1,3-diene are examples ofA. position isomersB. chain isomersC. functional isomersD. metamers |
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Answer» Correct Answer - C They have same molecular formula but possess different functional groups. |
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| 97. |
Dienes are of three types. Cumulated, conjugated and isolated diene. A,B and C are three isomeric pentadienes. They differ in their energies which is plotted with their product of hydrogenation. Study the graph and answer the following questions. How many open chain structural isomers are possible for Molecular formula `C_(5)H_(8)` other than these three pentadienes mentioned above.A. 6B. 8C. 9D. none of these |
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Answer» Correct Answer - A `{:("[C=C=C-C-C",,C=C-C=C-C,,),(C=C-C-C=C,,C-C=C=C-C,,),(C=underset(C)underset(|)(C)-C=C,,C=C=underset(C)underset(|)(C)-C,,),(C-=C-C-C-C,,C-C-=C-C-C,,C-=C-overset(C)overset(|)(C)-C):}` |
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| 98. |
Statement I: Cyclohex -2,5-diene-1-one does not show tautameris. Statements : Carbonyl compounds with `alpha-H` tautamerism.A. If both statement-I and statement II are true & the statement II is a correct explanation of the statement IB. If both statemetn -I and Statement II are True and Statement II is not a correct explanation of the Statement IC. If Statement -I is True but the Statement -II is falseD. If Statement -I is false but the Statement -II is True. |
| Answer» Correct Answer - A | |
| 99. |
The degree of unsaturation in i. `C_(3)H_(3)Cl_(3), ii. C_(3)H_(4)O, iii. C_(4)H_(5)N` is :A. 2,1,3B. 1,2,3C. 3,2,1D. 2,3,1 |
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Answer» Correct Answer - B D.U in `C_(3)H_(3)CI_(3)=((2n_(C)+2)-(n_(CI)+n_(H)))/(2)` `=(8-6)/(2)=1^(@)` D.U. in `C_(3)H_(4)O=((2_(nC)+2)-n_(H))/(2)=(8-4)/(2)=2^(@)` D.U. in `C_(4)H_(5)N=((2n_(C )+2)-(n_(H)-n_(N)))/(2)` `=(10-4)/(2)=3^(@)` |
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| 100. |
Which of the following compounds is isomeric with methyl vinyl ether ?A. PropanalB. 1- propanolC. functiional ismoerD. taytomers |
| Answer» Correct Answer - A | |