Question

$A\sigma$ bonded molecule $M{X}_3$ is $T-$shaped. The number of non-bonding pairs of electrons (on central atom) is

• A. $0$
• B. $2$
• C. $1$
• D. can be predicated only if atomic number of $M$ is known

Answer 1

Answer: (B)

$2$

Given the shape of $M{X}_3$ T-shaped.
So, hybridisation will be $s{p}^{3}d⟹$ $3$ bond pairs and $2$ lone pairs.
For example:- $Cl{F}_3$