Question

Among the compounds $I-IV$, the compound having the lowest boiling point is:

• A. $I$
• B. $II$
• C. $III$
• D. $IV$

Answer 1

The correct option is C $III$

1) Due to intermolecular hydrogen bonding, Alcohol has more boiling point than ether.

2) Among the alcohols as the molecular weight increases boiling point increases.

So the compound which is having a least boiling point is diethyl ether (option C)

Hence, the correct option is $\text{C}$