Question

Choose the incorrect order of bond angle among the following:

• A. $N{H}_3<H_{2}O$
• B. $N{H}_3>N{F}_3$
• C. $C{l}_{2}O>O{F}_2$
• D. All of the above are correct

Answer 1

The correct option is A $N{H}_3<H_{2}O$

a) $H_{2}O$ has lone pair-lone pair repulsions whereas $N{H}_3$ has only one lone pair and hence, the bond angle in ammonia is greater than water.


b) Due to the greater electronegativity difference, the bond pairs are more close to the nitrogen in the case of ammonia and hence has the greater repulsions between the bonded pair of electrons and has a larger bond angle than $N{F}_3$.


c) Due to larger size of $Cl$ compared to $F$, the bond angle of $C{l}_{2}O$ is greater than that of $F_{2}O$.