Question

In which of the following conversion both hybridisation as well as shape changes with respect to central atom?

• A. ${CH}_3\to C_2{H}_6$
• B. ${NH}_3\to {\stackrel{+}{NH}}_4$
• C. $H_{2}O\to H_3{O}^{+}$
• D. none of these

Answer 1

Answer: (D)

none of these

Hybridisation of carbon (central atom) in $C{H}_3=s{p}^3$ with 4 $\sigma$-bonds.

Hybridisation of carbon (central atom) in $C_2{H}_6=s{p}^3$ with 4 $\sigma$-bonds.

Hybridisation of nitrogen in $N{H}_3=s{p}^3$ with 3 $\sigma$-bonds and 1 lone pair.

Hybridisation of nitrogen in ${N{H}_4}^{+}=s{p}^3$ with 4 $\sigma$-bonds.

Hybridisation of oxygen in $H_{2}O=s{p}^3$ with 2 $\sigma$-bonds and 2 lone pair.

Hybridisation of oxygen in ${H_{3}O}^{+}=s{p}^3$ with 3 $\sigma$-bonds and 1 lone pair.

Since, in any of the given conversion, hybridization of the central atom is not changing, therefore none of them are correct.