Organic Chemistry Multiple Choice Questions and Answers

Questions

1 An ether is more volatile than an alcohol having the same molecular formula. What is the reason for this difference?

A dipolar character of ethers

B alcohols having resonance structures

C inter-molecular hydrogen bonding in ethers

D inter-molecular hydrogen bonding in alcohols

View Answer

Answer: inter-molecular hydrogen bonding in alcohols

2 Ethers may be used as solvents because they react only with which of the following reactants?

A Acids

B Bases

C Oxidising agent

D Reducing agents

View Answer

Answer: Acids

Article and Schedule Quiz	Start Test!

DOWNLOAD CURRENT AFFAIRS PDF FROM APP

3 What are the products when ethyl isopropyl ether is cleaved with concentrated HI?

A ethanol and 2-iodo-2-methylpropane

B ethanol and 2-methylpropane

C iodoethane and isopropyl alcohol

D iodoethane and 2-methylpropane

View Answer

Answer: iodoethane and isopropyl alcohol

4 What are the products when tert-butyl ethyl ether is cleaved with concentrated HI?

A iodoethane and tert-butanol

B iodoethane and 2-iodo-2-methylpropane

C ethanol and 2-iodo-2-methylpropane

D ethanol and tert-butanol

View Answer

Answer: ethanol and 2-iodo-2-methylpropane

5 Which pair of products would result from the acid cleavage of phenyl propyl ether with excess concentrated HBr at an elevated temperature?

A Phenol and 1-propanol

B Bromobenzene and 1-propanol

C Bromobenzene and 1-bromopropane

D Phenol and 1-bromopropane

View Answer

Answer: Phenol and 1-bromopropane

6 Select the ether among following that yields methanol as one of the products on reaction with cold hydroiodic acid.

A 1-Methoxybutane

B 1-Methoxy-2-methylpropane

C 2-Methoxy-2-methylpropane

D Methoxybenzene

View Answer

Answer:2-Methoxy-2-methylpropane

7 The boiling point of ethyl alcohol is much higher than that of dimethyl ether though both have the same molecular weight. Why?

A Ether is insoluble in water

B Methyl groups are attached to oxygen in ether

C Dipole moment of ethyl alcohol is less

D Ethyl alcohol shows hydrogen bonding

View Answer

Answer: Ethyl alcohol shows hydrogen bonding

8 Which pair of products would result from the acid cleavage of tert-butyl propyl ether with excess concentrated HBr at an elevated temperature?

A tert-butyl bromide and propyl alcohol

B tert-butyl bromide and propyl bromide

C tert-butyl alcohol and propyl bromide

D 2-methyl-2-butene and propyl bromide

View Answer

Answer: tert-butyl bromide and propyl bromide

9 Which of the following is the name reaction of the given reaction?

Organic Chemistry

A Wollf’s rearrangement

B Favorskii rearrangement

C Pinacol rearrangement

D Claisen rearrangement

View Answer

Answer: Claisen rearrangement

10 Which of the following will be obtained by keeping ether in contact with air for a long time?

A C₂H₅−O−CH (CH₃)−O−OH

B C₂H₅−OCH₂−OH

C C₂H₅−O−C₂H₅OH

D CH₃−O CH (CH₃)−O−OH

View Answer

Answer: C₂H₅−O−CH (CH₃)−O−OH

ADRE 2.0 FULL LENGTH MOCK TEST

Take Mock Tests

Missiles Mock Test	Start Test!
SSC MTS Mock Test	Start Test
IBPS CLERK MOCK TEST	Start Test
SSC MTS 2022 JULY 26 Shift 1 (ENGLISH)	Start Test!
SSC GD Previous Year Paper 2021 Nov 17 Shift - I (Hindi)	Start Test!
SSC CGL Tier - 1 PYP 2022 April 21 Shift- 1 (ENGLISH)	Start Test!
MPSC PAPER I MOCK TEST 1 (ENGLISH)	Start Test!
IB Security Assistant Mock test 1 (english)	Start Test!
UP POLICE CONSTABLE MOCK TEST 1	Start Test!
DELHI POLICE CONSTABLE MOCK TEST 1 (HINDI)	Start Test!