Question

Consider the molecules $C{H}_4$, $N{H}_3$ and $H_{2}O$. Which of the given statements is false?

• A. The H - O - H bond angle in $H_{2}O$ is larger than the H - C - H bond angle in $C{H}_4$
• B. The H - O - H bond angle in $H_{2}O$ is smaller than the H - N - H bond angle in $N{H}_3$
• C. The H - C - H bond angle in $C{H}_4$ is larger than the H - N - H bond angle in $N{H}_3$
• D. The H - C - H bond angle in $C{H}_4$, the H - N - H bond angle in $N{H}_3$, and the H - O - H bond angle in $H_{2}O$ are all greater than ${90}^{\circ }$

Answer 1

The correct option is A

The H - O - H bond angle in $H_{2}O$ is larger than the H - C - H bond angle in $C{H}_4$

$\begin{array}{ccc}& & \\ \text{Molecules}& & \text{Bond angle}\\ C{H}_4& \to & {109.5}^{\circ }\\ N{H}_3& \to & {107.5}^{\circ }\\ H_{2}O& \to & {104.5}^{\circ }\end{array}$