Question

In which case, hybridisation of the central atom is affected when:

• A. $N{H}_3$ changes to $N{H}_4^{+}$
• B. $Al{H}_3$ changes to $Al{H}_4^{-}$
• C. in both cases
• D. in none case

Answer 1

The correct option is B $Al{H}_3$ changes to $Al{H}_4^{-}$

$Al{H}_3$ has 3 Bond pair which means it is $s{p}^2$ hybridized while in $Al{H}_4^{-}$ has 4 Bond pair which means it is $s{p}^3$ hybridized