Explore topic-wise MCQs in Organic Chemistry.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Organic Chemistry knowledge and support exam preparation. Choose a topic below to get started.

1.

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

A. C<sub>2</sub>H<sub>5</sub> O CH (CH<sub>3</sub>) O OH
B. C<sub>2</sub>H<sub>5</sub> OCH<sub>2</sub> OH
C. C<sub>2</sub>H<sub>5</sub> O C<sub>2</sub>H<sub>5</sub>OH
D. CH<sub>3</sub> O CH (CH<sub>3</sub>) O OH
Answer» B. C<sub>2</sub>H<sub>5</sub> OCH<sub>2</sub> OH
Discussion
2.

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
Answer» C. tert-butyl alcohol and propyl bromide
Discussion
3.

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
Answer» E.
Discussion
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
Answer» D. ethanol and tert-butanol
Discussion