Question

The largest bond angle is observed in

• A. $H_{2}O$
• B.
  $N{H}_3$
• C.
  $O{F}_2$
• D.
  $C{H}_4$

Answer 1

The correct option is D

$C{H}_4$

$N{H}_3$ $H_{2}O$ and $O{F}_2$ bond angle is less than ${109}^{\circ }{28}^{\prime }$ because lone pair occupies the orbital that has more s character and it increases the p character in the other bonds. Hence bond angle is less than ${109}^{\circ }{28}^{\prime }$
$C{H}_4$ bond angle is ${109}^{\circ }{28}^{\prime }$ as it is a regular tetrahedral.