Question

The angle between two covalent bond is minimum in___________.

• A. ${CH}_4$
• B. $C_2{H}_6$
• C. ${NH}_3$
• D. $H_{2}O$

Answer 1

The correct option is D $H_{2}O$

Solution:- (D) $H_{2}O$

$C{H}_4$ has $s{p}^3$ hybridisation with $4\sigma$ bonds.

In $C_2{H}_6$ each carbon atom has $s{p}^3$ hybridisation with $4\sigma$ bonds.

$N{H}_3$ has $s{p}^3$ hybridisation with $3\sigma$ bonds and $1$ lone pair.

$H_{2}O$ has $s{p}^3$ hybridisation with $2\sigma$ bonds and $2$ lone pairs.

All the compunds have $s{p}^3$ hybridisation.

Since $H_{2}O$ has $2$ lone pairs (maximum among the given compound), thus due to repulsion, the bond would decrease and hence the bond angle will be minimum.

Hence the bond angle is minimum in $H_{2}O$.