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.
| 1. |
How many alkynes isomers are dormed with molecular formula `C_(4)H_(6)` ? |
| Answer» Correct Answer - B | |
| 2. |
How many different alcohol (not including optical isomers) are possible with the molecular formula : `C_(4)H_(10)O`?A. 3B. 4C. 5D. 6 |
| Answer» Correct Answer - B | |
| 3. |
The `IUPAC` name of is:A. `2`-Chlorocarbonylethyl benzoateB. `2`-CarboxyethylbenzoylchlorideC. Ethyl-`2`-(chlorocarbonyl) benzoateD. Ethyl-`1`-(chlorocarbonyl) benzoate |
| Answer» Correct Answer - C | |
| 4. |
Calculate `sigma` and `pi`-bond in following compounds. (a)`HC-=C CH=CHCH_(3)` ,(b)`CH_(2)=C=CHCH_(3)` |
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Answer» (a)`sigma_(C-C):4,sigma_(C-H):6,pi_(C=C):1,pi_(C=C):2` (b)`sigma_(C-C):3,sigma_(C-H):6,pi_(C=C):2` |
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| 5. |
Number of bonds in given compound is: `CH_(2)=C=CH-C=CH`A. 10B. 12C. 14D. 16 |
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Answer» Correct Answer - B Total number of bonds in the given compound is 12 |
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| 6. |
Write the number of `sigma` and `pi` bonds in the following molecules? |
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Answer» Correct Answer - A::B::C::D (a) 19 `sigma` bonds, `pi` bonds (b) 22 `sigma` bonds (c) 20 `sigma` bonds |
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| 7. |
The number of structurally isomeric ketones with molecular formula `C_(5H_(12)O` are: |
| Answer» Correct Answer - N//A | |
| 8. |
How many `sigma` bonds and `pi` bonds are present in `CH_(2)=C=CH_(2)` ?A. `6 sigma` and `1 pi`B. `8 sigma` and `0 pi`C. `4 sigma` and `4 pi`D. `6 sigma` and `2 pi` |
| Answer» Correct Answer - D | |
| 9. |
The number of metamers of the compound with molecular formula `C_(5)H_(12)O` is/are:A. 1B. 3C. 8D. 6 |
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Answer» Correct Answer - D `CH_(3)-O-CH_(2)-CH_(2)-CH_(2)-CH_(3),CH_(3)-O-undersetunderset(CH_(3))(|)(CH)-CH_(2)-CH_(3),CH_(3)-O-CH_(2)-undersetunderset(CH_(3))(|)(CH)-CH_(3),`CH_(3)-O-undersetunderset(CH_(3))(|)oversetoverset(CH_(3))(|)C-CH_(3),CH_(3)-CH_(2)-O-CH_(2)-CH_(2)-CH_(3),CH_(3)-CH_(2)-O-undersetunderset(CH_(3))(|)(CH)-CH_(3)` |
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| 10. |
Number of structurally isomeric ether with molecular formula `C_(5)H_(12)O`.A. 4B. 5C. 6D. 7 |
| Answer» Correct Answer - C | |
| 11. |
The number of ether metamers represented by the formula `C_4H_(10)O` isA. 1B. 2C. 3D. 4 |
| Answer» Correct Answer - C | |
| 12. |
The `IUPAC` name of , is:A. `2`-Bromo-`3`-methylbut-`3`-eneB. `4`-Bromo-`3`-methylpent-`2`-eneC. `2`-Bromo-`3`-methylpent-`3`-eneD. `4`-Bromo-`2,3`-dimethylbut-`2`-ene |
| Answer» Correct Answer - B | |
| 13. |
The `IUPAC` name of the following compound is: A. `n`-Propyl ethanoateB. Ethyl propanoateC. Pentanoic anhydrideD. `n`-Propyl propanoate |
| Answer» Correct Answer - D | |
| 14. |
The `IUPAC` name of the compound is: A. Propanoic anhydrideB. Dipropanoic anhydrideC. Ethoxy propanoic acidD. `1`-Oxopropyl propanoate |
| Answer» Correct Answer - A | |
| 15. |
`IUPAC` name of given compound is: `H-undersetunderset(O)(||)(C)-CH_(2)-undersetunderset(CH_(3))(|)(CH)-C=N`A. `3`-Carbonitrile-`3`-methyl butanalB. `3`-Formyl-`2`-methyl propane nitrileC. `3`-CyanobutanalD. `2`-Methyl-`4`-oxobutane nitrile |
| Answer» Correct Answer - D | |
| 16. |
Write the correct `IUPAC` name of the following: (i) `H_(3)C-undersetunderset(Cl)(|)(CH)-undersetunderset(Br)(|)(CH)-undersetunderset(CH_(2)CH_(3))(|)oversetoverset(CH_(3))(|)(C)-SO_(3)H` , (ii)`HOOC-CH_(2)-CH_(2)-undersetunderset(CH_(3))(|)(CH)-SO_(3)H` |
| Answer» (i)`4`-Bromo-`5`-chloro-`3`-methylhexane-`3`-sulphonic acid , (ii)`4`-Sulphopentanoic acid | |
| 17. |
`IUPAC` name of the compound `CH_(3)CH_(2)CH_(2)CH_(2)-undersetunderset(CH_(3))(|)(CH)-undersetundersetundersetunderset(CH_(2)CH_(3))(|)(CHCH_(3))(|)(CH)-CH_(2)-undersetunderset(CH_(3))(|)oversetoverset(CH_(3))(|)(C)-CH_(3)` isA. `2,2,5`-Trimethyl-`4`-(`1`-methylpropl) nonaneB. `4,8,8`-Trimethyl-`6`-(`1`-methylpropl) nonaneC. `3,6`-Dimethyl-`4`-(`1`-methylene tertiary butyl) nonaneD. `6,6`-Dimethyl-`2`-propyl-`4`-(`1`-methyylpropyl)heptane |
| Answer» Correct Answer - A | |
| 18. |
Correct `IUPAC` name of given ester is: `CH_(3)-undersetunderset(Br)(|)(CH)-undersetunderset(O)(||)(C)-O-C_(2)H_(5)`A. Ethyl `2`-bromopropanoateB. `2`-BromoethylpropanoateC. Ethyl-`1`-bromoethanoateD. `2`-Bromo ethoxyethanecarboxylate |
| Answer» Correct Answer - A | |
| 19. |
The number of isomers of `C_(6)H_(14)` isA. 6B. 5C. 4D. 7 |
| Answer» Correct Answer - B | |
| 20. |
How many structural isomers can be obtained by the replacment of one hydrogen atom of propene with chlorine?A. 4B. 3C. 2D. 5 |
| Answer» Correct Answer - B | |
| 21. |
The `IUPAC` name of `CH_(3)-undersetunderset(OH)(|)(CH)-CH_(2)-CH_(2)-CH_(2)-undersetunderset(Br)(|)oversetoverset(Br)(|)(C)-CH_(3)` is:A. `6,6`-Dibromoheptan-`2`-olB. `2,2`-Dibromoheptane-`6`-olC. `6,6`-Dibromoheptan-`2`-alD. None of these |
| Answer» Correct Answer - A | |
| 22. |
Which of the following is a pair of structral isomers ? |
| Answer» Correct Answer - (iii) | |
| 23. |
Compounds having same molecular formula but different connectivity of atoms or groups are called structure isomers. Structrue isomers are futher classify according to their dissimilarities. In the following skelton `Z` can be, if the molecular formula is `C_(5)H_(10)O_(2)`: `CH_(3)-CH_(2)-undersetunderset(Z)(|)(CH)-CH_(3)` (i)A carboxylic acid , (ii)An ester (iii)Hydroxyaldehyde , (iv)AlkanediolA. i & iiB. iii & ivC. i & ivD. ii ^ iii |
| Answer» Correct Answer - A | |
| 24. |
are related as:A. Functional IsomersB. Position isomersC. Chain isomersD. Metamers |
| Answer» Correct Answer - A | |
| 25. |
The `IUPAC` name of neopentane isA. `2,2`-DimethylpropaneB. `2`-methylpropaneC. `2,2`-dimethylbutaneD. `2`-methylbutane |
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Answer» Correct Answer - A `CH_(3)-undersetunderset(CH_(3))(|)oversetoverset(CH_(3))(|)C-CH_(3)` `2,2`-Dimethylpropane |
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| 26. |
Which of the following is a correct priority order of functional groups ?A. B. C. D. |
| Answer» Correct Answer - B | |
| 27. |
The correct decreasing order of priority for the functional group of organic compounds in the `IUPAC` system of nomenclature isA. `-SO_(3)H,-COOH,-CONH_(2),-CHO`B. `-CHO,-COOH,-SO_(3)H,-CONH_(2),`C. `-CONH_(2),-CHO,-SO_(3)H,-COOH`D. `-COOH,-SO_(3)H,-CONH_(2),-CHO` |
| Answer» Correct Answer - D | |
| 28. |
The correct IUPAC of the following comound is - A. `1,3,4`-trimethyl cyclopentaneB. `1,3,5`-trimethyl cyclopentaneC. `1,3,5`-trimethyl cyclobutaneD. `1,2,4`-trimethyl cyclopentane |
| Answer» Correct Answer - D | |
| 29. |
Total number of `2^(@)` amine isomers of `C_(4)H_(11)N` would be (only structural)A. 4B. 3C. 5D. 2 |
| Answer» Correct Answer - B | |
| 30. |
How many carbons are in simplest alkyne having two side chanis ?A. 5B. 6C. 7D. 8 |
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Answer» Correct Answer - B `H-C-=C-underset(C )underset(|)overset(C )overset(|)(C )-C` |
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| 31. |
IUPAC nomenclature of the given organic compound `(CH_(3))_(2)C(CH_(2)CH_(3))CH_(2)CH(Cl)CH_(3)` will beA. `5`-Chloro `3,3`-dimethyl hexaneB. `4`-Chloro-`2`-ethyl-`2`-methyl pentaneC. `2`-Chloro-`4`-ethyl-`4`-methyl pentaneD. `2`-Chloro-`4,4`-dimenthyl hexane |
| Answer» Correct Answer - DOption D. 2-chloro-4,4-dimethylhexane | |
| 32. |
Write IUPAC name of the following compounds. (a) `H-C-=C CH_(2)CH=CH_(2)` A.B.C.D. |
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Answer» (a) pent-1-en-4-yne (b) 1,4-heptadiene-6-yne |
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| 33. |
Which of the following name is correct :-A. 4-Isopropyl-3-methyl hexaneB. 2-Ethyl-3-isopropyl pentaneC. 3-Isopropyl-4-methyl hexaneD. 3-Ethyl-2,4-dimethyl hexane |
| Answer» Correct Answer - D | |
| 34. |
Which of the following have only `2^(@)` H-atom A. only a and bB. a, b and dC. a, c and dD. All of them |
| Answer» Correct Answer - B | |
| 35. |
The correct systematic IUPAC name of the given compound is : `underset(COOH)underset(|)(CH_(2))-underset(COOH)underset(|)overset(OH)overset(|)(C )-CH_(2)-underset(O)underset(||)(C )-OH`A. 3-Carboxy-3-hydroxy butane dioic acidB. 2-Hydroxy propane-1,2,3-tricarboxylic acidC. 3-Hydroxy butane dioic acidD. 2-Bis(carboxymethyl)-2-hydroxy ethanoic acid |
| Answer» Correct Answer - B | |
| 36. |
The correct IUPAC name from the incorrect name 4-Amino-3-hydroxy-2-butene is :-A. 1-Amino-2-hydroxy-2-buteneB. 4-Amino-2-buten-3-olC. 1-Amino-2-buten-2-olD. 1-Amino-2-butenol |
| Answer» Correct Answer - C | |
| 37. |
The hetero atoms present in the following compound is/are : A. 2B. 3C. 1D. 4 |
| Answer» Correct Answer - A | |
| 38. |
What is the `IUPAC` name of A. `5`-Chloro-`3`-hydroxybenzenecarbonyl chlorideB. `3`-Hydroxy-`5`-chlorobenzenecarbonyl chlorideC. `3`-Chloro-`5`-hydroxybenzenecarbonyl chlorideD. `1`-Chlorocarbonyl-`3`-chlorobenzene-`1`-ol |
| Answer» Correct Answer - C | |
| 39. |
What is the `IUPAC` name of compound is: A. `3`-Amino-`6`-bromocyclohexane-`1`-carboxylic acidB. `2`-Bromo-`5`-aminocychexane-`1`-carboxylic acidC. `5`-Amino-`2`-bromocyclohexane-`1`-carboxylic acidD. `4`-Bromo-`5`-carboxycyclohexanamine |
| Answer» Correct Answer - C | |
| 40. |
The `IUPAC` name of `CH_(2)-CH_(2)-undersetunderset(CH_(3))(|)(N)-CH_(2)-CH_(3)` is:A. `N`-Methyl-`N`-ethyl ethanamineB. Diethyl methanamineC. `N`-Ethyl-`N`-methyl ethanamineD. Methyl diethyl ethanamine |
| Answer» Correct Answer - C | |
| 41. |
The compound `CH_(3)-CH_(2)` , , may be named as :A. 2-ethyl-2-methyl oxiraneB. 1,2-epoxy-2-methylbutaneC. 1,2-oxapentaneD. 2-methyl-2-butoxide |
| Answer» Correct Answer - A::B | |
| 42. |
In the given formula `G` is an unknown group. What will be the group `G`,which can change the word root (parent carbon chain length) of above structure?A. `-CH=CH_(2)`B. `-Cl`C. `-CH_(2)-CH_(2)-CH_(3)`D. `-COOH` |
| Answer» Correct Answer - D | |
| 43. |
Write the correct `IUPAC` name of the following: |
| Answer» (i)Cyclohexylbenzene , (ii)Ethyl `3`-phenylbenzene-`1`-carboxylate | |
| 44. |
Which name is correct :A. B. C. D. |
| Answer» Correct Answer - B | |
| 45. |
IUPAC name of `CH_(2)=CH-CH_(2)NH_(2)` is :A. 3-amino propenamineB. 2-Propen-1-amineC. 3-Amino-1-propenamineD. Allyl Amine |
| Answer» Correct Answer - B | |
| 46. |
Write common & `IUPAC` name of the following structure: |
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Answer» (i)`1,2`-Dimethyl benzene (`o`-Xylene) , (ii)Phenylethene (Styrene) (iii)`4`-methyl phenol (`p`-cresol) , (iv)`2`-Hydroxybenzenecarbaldehyde (Salicylaldehyde) |
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| 47. |
The number of primary alkanols, secondary alkanols and tertiary alkanols possible with the formula `C_(4)H_(10)O` is given by the set :-A. `2,1,0`B. `1,2,1`C. `2,1,1`D. `2,1,2` |
| Answer» Correct Answer - C | |
| 48. |
What is isomerism? Give an example. |
| Answer» The phenomenon of existence of two or more compounds possessing the same molecular formulae but different properties is known as isomerism.e.g.`C_(2)H_(5)OH` & `CH_(3)-O-CH_(3)`. | |
| 49. |
What is Metamerism? Give an example. |
| Answer» Metamerism arises due to different alkyl chains on either side of the polyvalent functional group in the molecule. Ex. `CH_(3)-CH_(2)-O-CH_(2)-CH_(3)` and `CH_(3)-O-CH_(2)-CH_(2)-CH_(3)` | |
| 50. |
Write the `IUPAC` name of |
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Answer» 1.The longest chain containing functional group is of `7` carbon atoms.Therefore, the word root is hept & the chain is numbered as shown. 2.There is no multiple bond in it.Hence, the primary suffix is `an e`. 3.The functional groups is `-CN`.Hence, secondary suffix is `nitril e` 4.Moreover, there is a methyl group on carbon `5` and ethyl group on carbon `3`. 5.The `IUPAC` name is, therefore,`3`-Ethyl-`5`-methylheptanenitrile |
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