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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. |
A hydrocarbon of molecular weight `72gmol^(-1)` has a 2-methyl group. What is the IUPAC name? Also drawn its bond-line structure? |
| Answer» Correct Answer - `CH_(3)-overset(CH_(3))overset(|)(CH)-CH_(2)-CH_(3)` | |
| 52. |
Write down the correct IUPAC name of the following compounds : (i) (ii) (iii) |
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Answer» Correct Answer - (a) Ethyl-2-cyano-5-cyclopropyl-4,6-dimethyl-3-oxohept-5-en-1-oate (b) Isopropyl -3-hydroxycyclohexane carboxylate. (c ) 2-(3-oxobutyl) cyclohexan-1-one. |
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| 53. |
Write down the correct priority for citation as principal groups : `-overset(O)overset(||)(C)-,-COOH,-CHO,-OH,-Br,-` |
| Answer» Correct Answer - `-COOH gt-CHO gt-underset(O)underset(||)(C)-gt-OH gt-Br` | |
| 54. |
What is positional isomerism? Give an example. |
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Answer» When two or more compounds differ in the position of substituent atom or functional group on the carbon skeleton, they are called position isomers and the phenomenon is termed as position isomerism. e.g.`Cl-CH_(2)-CH_(2)-CH_(3)`(`1`-chloropropane) & `CH_(3)-CH(Cl)-CH_(3)`(`2`-chloropropane). |
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| 55. |
IUPAC name of the following compound is : A. 2-methyl-3-cyclohexenolB. 3-methyl-1-cyclohexen-4-olC. 4-hydroxy-3-methy-1-cyclohexeneD. 2-hydroxy-1-methylcyclohexene |
| Answer» Correct Answer - A | |
| 56. |
The no. of isomeric pair with correct relationship specified are: |
| Answer» Correct Answer - D | |
| 57. |
What is the degree of unsaturation in a compound with molecular formula `C_(9)H_(6)N_(4)`? |
| Answer» Correct Answer - N//A | |
| 58. |
Indicate the following as `1^(@),2^(@)` & `3^(@)` amines. |
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Answer» Correct Answer - A::B::C::D (a) `2^(@)` (b) `2^(@)` (c) `3^(@)` (d) `3^(@)` |
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| 59. |
Indicate the following as `1^(@),2^(@)` & `3^(@)` alcohol. |
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Answer» Correct Answer - A::B::C (a) `2^(@)` (b) `3^(@)` (c) `1^(@)` |
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| 60. |
Correct IUPAC name of following compound is: A. `2`-Amino-`3`-formyl butane-`1,4`-dioic anhydrideB. `3`-Amino-`2`-formyl butane-`1,4`-dioic anhydrideC. `3`-Amino-`2`-oxobutane-`1,4`-dioic anhydrideD. `2`-Formyl-`3`-amino butane-`1,4`-dioic anhydride |
| Answer» Correct Answer - A | |
| 61. |
Which of the following `IUPAC` names are correct.A. B. C. D. |
| Answer» Correct Answer - A::C::D | |
| 62. |
(a) Incorrect statement for the above structure:A. I,II & II have `C_(n)H_(2n-2)` general formulaB. I,II & II have same empirical formulaC. I,II are identical and homologue of compound III.D. I,II & II have same molecule formula |
| Answer» Correct Answer - C | |
| 63. |
Which of the following statements are incorrect for aniline.A. Compound is heterocyclic hydrocarbonB. Number of `sigma` bonds are `8`C. Degree of unsaturation of the compound is `3`D. It contains functional group amine |
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Answer» Correct Answer - A::B::C The number of `sigma` bonds are `14` and `DU=4` |
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| 64. |
The type of unsaturation present in crotonic acid is -A. `alpha,beta`B. `beta,alpha`C. `alpha, alpha`D. `beta,beta` |
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Answer» Correct Answer - A The type of unsaturation present in crotonic acid is `alpha,beta` `underset(4)(C )H_(3)-underset(3)overset(beta)(C )H=underset(2)overset(alpha)(C)H-underset(1)overset(O)overset(||)(C )-OH` Crotonic acid or (2-Butenoic acid) |
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| 65. |
Write the IUPAC name of the compound |
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Answer» 2- Isopropyl-5- methylcyclohexanol or 2-(1-methylenthyl)-5- methyl cyclohexanol Here `{:(,"Secondary prefix",=,2-"Isoprypyl"5-"methyl"),(,"Primary prefix",=,"Cyclo"),(,"Word root",=,"hex"),(,"Primary suffix",=,"an" (e)),(,"Secondary suffix",=,"ol"):}` |
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| 66. |
Write IUPAC name of the following compound (a) `CH_(3)-CH_(2)-underset(CH_(3))underset(|)(CH)-CH_(2)underset(CH_(2)-CH_(3))underset(|)(CH)-CH_(2)-CH_(2)-CH_(3)` (b) `CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-CH_(2)-overset(CH_(2)-CH_(3))overset(|)(CH)-CH_(2)-underset(CH_(3))underset(|)(CH)-CH_(3)` (c) |
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Answer» (a) 5-Ethyl-3-methyloctane (b) 4-Ethyl-2, 2, 6-trimethylheptane (c ) 3-Methylhexane |
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| 67. |
Write the IUPAC name of the following compound. `overset(5)(C)H_(3)-overset(4)(C)H_(2)-underset(CH_(3))underset(|)overset(3)(C)H-underset(CH_(3))underset(|)overset(CH_(3))overset(2|)(C)-overset(1)(C)H_(3)` `overset(1)(C)H_(3)-overset(2)(C)H_(2)-overset(3)(C)H_(2)-overset(4)(C)H_(2)-underset(CH_(3))underset(3|)underset(CH-CH_(3))underset(2|)underset(CH-CH_(3))underset(1|)overset(6)(CH)-overset(6)(C)H_(2)-overset(7)(C)H_(2)-overset(8)(C)H_(2)-overset(9)(C)H_(3)` |
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Answer» (i) 2,2,3-trimethylpentane (ii) 5-(1,2-diamethylpropyl)nonane |
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| 68. |
IUPAC name of compound `CH_(3)CH_(2)Ooverset(O)overset(||)(C )CH_(2)CH_(2)CH_(3)` isA. Propyl propanoateB. Ethyl butanoateC. Propyl butanoateD. Ethyl propanoate |
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Answer» Correct Answer - B `CH_(3)-CH_(2)-O-underset(O)underset(||)overset(1)(C )-overset(2)(C )H_(2)-overset(3)(C)H_(2)-overset(4)(C)H_(3)` Ethyl butanoate |
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| 69. |
The correct `IUPAC` name os the following compound is A. `4`-Ethyl-`3,5`-dimethylhexaneB. `2,4`-Dimethyl-`3`-ethylhexaneC. `3`-Ethyl-`2,4`-dimethylhexaneD. `3`-Isopropyl-`4`-methylhexane |
| Answer» Correct Answer - D | |
| 70. |
Which `IUPAC` name is incorrect among the following compounds?A. `CH_(3)-CH=CH-CH_(2)-CI , 1`-Chlorobut-`2`-eyeB. `HC-=C=CH_(2)-CH_(2)-Br , 1`-Bromobut-`3`-yneC. `CH_(3)-CH=CH-CH=CH_(2)` , Penta-`1,3`-dieneD. `CH_(3)-oversetoverset(Br)(|)(CH)-CH_(2)-undersetunderset(Cl)(|)oversetoverset(Cl)(|)(C)-CH_(3) , 4`-Bromo-`2,2`-dichloropentane |
| Answer» Correct Answer - B | |
| 71. |
`IUPAC` name of isA. `5`-ethenylcyclopenta-`1,3`-dieneB. `3`-ethenylcyclopenta-`1,4`-dieneC. `1`-ethenylcyclopenta-`2,4`-dieneD. `2`-ethenylcyclopenta-`1,3`-diene |
| Answer» Correct Answer - A | |
| 72. |
Which of the following is correct IUPAC name ?A. `2`-Bromo cyclohex-`5`-ene carbaldehydeB. Ethyl-`2`-vinyl pentanoateC. `5`-Bromo-`3`-chlorohept-`3`-eneD. `2`-Ethenylhexa-`1,5`-diene |
| Answer» Correct Answer - C | |
| 73. |
How many carboxylic acid structure isomers are possible with `C_(5)H_(10)O_(2)` ?A. 3B. 4C. 5D. 8 |
| Answer» Correct Answer - B | |
| 74. |
Write `IUPAC` name of the following |
| Answer» Correct Answer - A::B::C::D | |
| 75. |
Write `IUPAC` name of the following |
| Answer» Correct Answer - A::B::C::D | |
| 76. |
Write `IUPAC` name of the following |
| Answer» Correct Answer - A::D | |
| 77. |
Number of correct names in the given substituents are: (a) (c )`-undersetunderset(CH_(3))(|)(CH)-undersetunderset(CH_(3))(|)(CH)-CH_(3)` , `2,3`-Dimethylpropyl , (d)`-CH_(2)-undersetunderset(CH_(3))(|)(CH)-undersetunderset(CH_(3))(|)(CH)-CH_(3)` , `2,3`-Dimethylbutyl , (e)`=CH-CH_(3)` , Ethylidene , (f)`-undersetunderset(CH_(3))(|)(CH)=CH_(2)` , `2`-Methylethenyl , (g)`-C-=CH` ,Ethynyl , (h)`-CH_(2)-CH=CH_(2)` , `2`-Propenyl , (i)`-CH_(2)-C-=CH` , Prop-`1`-ynyl |
| Answer» a,c,f & I are correct | |
| 78. |
The `IUPAC` name of the following compound is: A. `5`-Bromo-`3`-hydroxybenzenecarbaldehydeB. `3`-Bromo-`5`-formylphenolC. `3`-Bromo-`5`-hydroxybenzenecarbaldehydeD. `1`-Bromo-`3`-formyl-`5`-hydroxybenzene |
| Answer» Correct Answer - C | |
| 79. |
The correct `IUPAC` name of the compound. A. `N`-Formyl-`4`-chlorobenzenamineB. `N`-Formyl`-4`-chloroanilineC. `N`-(`4`-chlorophenyl)methanamideD. `N`-(Parachlorophenyl)-`N`-formylaniline |
| Answer» Correct Answer - C | |
| 80. |
`IUPAC` name of A. `4`-Chlorophenyl benzoateB. Phenyl-`4`-chlorobenzenecarboxylate.C. Benzyl-`4`-chlorobenzenecarboxylate.D. `4`-Chloro diphenlcarboxylate |
| Answer» Correct Answer - B | |
| 81. |
Write the IUPAc name of the following compound : (a) `CH_(3)-CH_(2)-overset(CH_(3))overset(|)(CH)-CH=CH-CH_(2)-CH_(3)` (b) `CH_(3)-CH_(2)-overset(CH_(3))overset(|)(CH)-overset(CH_(2)-CH_(3))overset(|)(CH)-underset(CH_(3))underset(|)underset(CH-CH_(3))underset(|)underset(CH_(2))underset(|)underset(CH_(2))underset(|)(CH)-CH=overset(CH_(3))overset(|)(C)-CH_(3)` |
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Answer» Correct Answer - (a) 5-Methyl-3-heptene (b) 5-Ethyl-2,6-dimethyl-4-(3-methylbutyl)oct-2-ene |
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| 82. |
The correct IUPAC name of the following compound is : A. 1-(2-hydroxy cyclohexane) butan-2-olB. 4-(2-hydroxy cyclohexane) butan -3-olC. 1-(2-hydroxy but-1-yl) cyclohexan-2-olD. 2-(2-hydroxy butyl) cyclohexan-1-ol |
| Answer» Correct Answer - D | |
| 83. |
The correct name of 2-chlorobutan-3-ol isA. 3-Chloro-2-hydroxy butaneB. 3-Chloro-2-butanolC. 3-Hydroxy-2-cholro butaneD. 2-Chloro-3-hydroxy butane |
| Answer» Correct Answer - B | |
| 84. |
has the IUPAC name :A. 3,4-Dimethyl-1-penten-3-olB. Isopropyl-3-methyl vinyl carbinolC. 2,3-Dimethyl-4-penten-3-olD. None of the above |
| Answer» Correct Answer - A | |
| 85. |
has the IUPAC name :A. Ethyl-2-oxo cyclopentane carboxylateB. 2-Cyclopentanone -1-carbethoxyC. 2-Ethylcarbonate cyclopentanoneD. 1-Keto-2-carbethoxy cyclopentanone |
| Answer» Correct Answer - A | |
| 86. |
IUPAC name of the hydrogen (A) is : A. 2-ethyl5-methylhexaneB. 5-ethyl-2-methylhexaneC. 2,5-dimethylheptaneD. 5-ethyl-2,5-dimethylpentane |
| Answer» Correct Answer - C | |
| 87. |
The IUPAC name of compound given below is A. Bicyclo [3.2.1] octaneB. Bicyclo [3.2.2]octaneC. Spiro[2.2]octaneD. None of these |
| Answer» Correct Answer - A | |
| 88. |
The IUPAC name of is :-A. 1-Methyl-5-ethyl cyclohex-2-eneB. 5-Ethyl-3-methyl cyclohex-1-eneC. 4-Ethyl-6-methyl cyclohex-1-eneD. 1-Ethyl-5-methyl cyclohex-3-ene |
| Answer» Correct Answer - B | |
| 89. |
The IUPAC name of the , , structure is :-A. 2,4,5-Triethyl-3-noneneB. 5,6-Diethyl-3-methyl-4-deceneC. 2,4,5-Triethyl-3-octeneD. 3-Ethyl-5-methyl-3-heptene |
| Answer» Correct Answer - B | |
| 90. |
The number of all primary amines possible with the molecular formula `C_(3)H_(9)N` and the primary amine with amino group on a primary carbon atom is given by the set :-A. `4,1`B. `2,1`C. `3,2`D. `2,2` |
| Answer» Correct Answer - B | |
| 91. |
The structure of spiro [3.3] heptane isA. B. C. D. |
| Answer» Correct Answer - D | |
| 92. |
The correct name for A. 2-Hydroxy cyclopentanalB. 2-Formyl-1-hydroxy cyclopentaneC. 2-Hydroxy cyclopentane carbaldehydeD. Cyclopentane-2-ol-1-al |
| Answer» Correct Answer - C | |
| 93. |
In the compound `HC-=C-CH_(2)-CH=CH-CH_(3)`, the `C_(2)-C_(3)` bond is the type of :-A. `sp-sp^(2)`B. `sp^(3)-sp^(3)`C. `sp-sp^(3)`D. `sp^(2)-sp^(2)` |
| Answer» Correct Answer - C | |
| 94. |
The IUPAC name of `CH_(3)CH_(2)NHCHO` is :A. N-formyl ethanamineB. Ethyl amino methanalC. N-ethyl methanamide.D. None of them |
| Answer» Correct Answer - C | |
| 95. |
The name for the structure A. Cyclo hexanoyl chlorideB. Cyclohexane carbonyl chlorideC. 1-Chloro cyclohexanalD. Chloro cyclohexyl methanal |
| Answer» Correct Answer - B | |
| 96. |
Which of the following are the names of cyclic either :A. OxiraneB. EpoxyalkaneC. Alkene oxideD. Carbinol |
| Answer» Correct Answer - A::B::C | |
| 97. |
Which of the following names are correct for the compound : `CH_(3)-overset(O)overset(||)(C)-CH_(2)-COOH`A. 3-ketobutan-1-oic acidB. 4-Carboxy butan-2-oneC. 3-oxo butan-1-oic acidD. 3-Carboxy acetone |
| Answer» Correct Answer - A::C | |
| 98. |
The IUPAC name of `CH_(3)-overset(COOH)overset(|)(C )H-CH_(2)-overset(COOH)overset(|)(C)H-overset(CH_(3))overset(|)(CH)-COOH` is :-A. 2,4,5-Hexane tricarboxylic acidB. 2,3,5-Hexane tricarboxylic acidC. 2-(1-carboxyethyl)-4-methyl pentanediotic acidD. 3,5-Dicarboxy-2-methyl hexanoic acid |
| Answer» Correct Answer - B | |
| 99. |
`CH_(3)-O-underset(O)underset(||)(C )-CH_(2)-COOH` The correct IUPAC name of the above compound is :A. 2-Acetoxy ethanoic acidB. 2-Methoxycarbonyl ethanoic acidC. 3-Methoxyformyl ethanoic acidD. 2-Methoxyformyl acetic acid |
| Answer» Correct Answer - B | |
| 100. |
The name for `HC-=C-underset(CH_(3))underset(|)(C)=CH-CH_(3)` is :-A. 3-Methyl-2-penten-4-yneB. 3-Methyl-3-penten-1-yneC. 3-Methyl-4-pentyn-1-eneD. 3-Methyl pentenyne |
| Answer» Correct Answer - B | |