Chemical Bonding And Molecular Structure Question 149

Question: Specify the coordination geometry around and hybridization Of N and B atoms in a 1 : 1 complex of $ BF_3 $ and $ NH_3 $ :

Options:

A) N: tetrahedral, $ sp^{3} $ , B: tetrahedral, $ sp^{3} $

B) N: pyramidal, $ sp^{3} $ ‘, B: pyramidal, $ sp^{3} $

C) N: pyramidal, $ sp^{3} $ , B: planar, $ sp^{2} $

D) N: pyramidal, $ sp^{3} $ , B: trigonal planar, $ sp^{2} $

Show Answer

Answer:

Correct Answer: A

Solution:

  • The 1: 1 complex between $ BF_3 $ and $ NH_3 $ is represented as follows: in this complex both N and B attain tetrahedral geometry and $ sp^{3} $ hybridization in the coordinately formed structure. During coordinate bond formation hybridized state of donor does not change but hybridized state of acceptor changes.


Organic Chemistry PYQ

JEE Chemistry Organic Chemistry

Mindmaps Index