Question

The steam volatile compounds among the following are:

Choose the correct answer from the options given below:
 

• A. \( {(A)} \) and \( {(B)} \) Only
• B. \( {(A)}, {(B)} \) and \( {(C)} \) Only
• C. \( {(B)} \) and \( {(D)} \) Only
• D. \( {(A)} \) and \( {(C)} \) Only

Hint:

Steam volatility depends on the molecular size and the ability to form hydrogen bonds. Lower molecular weight compounds with hydrogen bonding groups like hydroxyl or amine are typically more steam volatile.

Answer 1

The Correct Option is A

Steam volatile compounds are typically those that are capable of being vaporized or evaporated easily at relatively low temperatures. Generally, compounds with hydrogen bonding or low molecular weight are steam volatile. 
Among the options: 
- (A) \( {C}_6{H}_4{OH}{NO}_2 \): This is a nitrophenol compound, which is steam volatile due to the phenolic group that can form hydrogen bonds and is low molecular weight. 
- (B) \( {C}_6{H}_4{NH}_2{NO}_2 \): This is a nitroaniline compound, which can also be steam volatile due to the amine group that can form hydrogen bonds. 
- (C) \( {C}_6{H}_4{OH}{NH}_2 \): This is an amphenol compound, and although it contains an amine and phenolic group, it has a higher molecular weight and is less likely to be steam volatile. 
- (D) \( {C}_6{H}_5{OH} \): This is phenol, which is steam volatile but not included in the right matching with other steam volatile candidates. Thus, the correct answer is (1).