Select correct statement(s) is /are :

Options

A. In `AsH_(3)` molecule lone pair at central atom is present in almost pure s-orbital
B. Number of `p pi -d pi` bond in `SO_(3) and SO_(2)` are same
C. `NF_(3)` is better Lewis base than `NCl_(3)`
D. Stable oxidation state of Lead is `+2`

Answer

A, D

Explanation

Correct statement is :
(b) Number of `p pi- d pi ` bond(s) in `SO_(3)` is two and in `SO_(2)` is one
(c ) Lewis basic order : `NCl_(3) gt NF_(3)`