Question

The correct order of basicity for the following molecules is:

• A. \( \text{P}>\text{Q}>\text{R} \)
• B. \( \text{R}>\text{P}>\text{Q} \)
• C. \( \text{Q}>\text{P}>\text{R} \)
• D. \( \text{R}>\text{Q}>\text{P} \)

Hint:

Bredt's rule helps explain basicity based on the localization of lone pairs.

Answer 1

The Correct Option is D

According to Bredt's rule, \( \text{R} \) has a more localized lone pair, making it the most basic, followed by \( \text{Q} \), which has cross conjugation, and finally \( \text{P} \) which is the least basic. 
Thus, the correct order is \( \text{R}>\text{Q}>\text{P} \).