Question

Which of the following is an electron deficient compound?

• A. $PC{l}_3$
• B. $ICl$
• C. $B{F}_3$
• D. $N{H}_3$

Answer 1

The correct option is C $B{F}_3$

$B{F}_3$ is an electron deficient compound as here $B$ has only $6$ electrons in its valence shell after forming bond i.e. the case of incomplete octet.