question_answer

The correct statement among the following is              [JEE Main Held on 12-4-2019 Morning]

A) \[{{(Si{{H}_{3}})}_{3}}N\]is pyramidal and more basic than \[{{(C{{H}_{3}})}_{3}}N\]

B) \[{{(Si{{H}_{3}})}_{3}}N\] is planar and more basic than\[{{(C{{H}_{3}})}_{3}}N\]

C) \[{{(Si{{H}_{3}})}_{3}}N\]is pyramidal and less basic than\[{{(C{{H}_{3}})}_{3}}N\]

D) \[{{(Si{{H}_{3}})}_{3}}N\] is planar and less basic than\[{{(C{{H}_{3}})}_{3}}N\]

Correct Answer: D

Solution :

nitrogen is \[s{{p}^{3}}\]hybrid and pyramidal no back-bonding i.e. more basic Nitrogen \[s{{p}^{2}}\]hybrid and planar due to back bonding and less basic because lone pair is not available for donation.