Question

Which of the following is not correctly matched?

	Bond angles	Number of bond angles
$\left(1\right)$	$C{H}_4\to {109}^o{28}^{\prime }$	$6$
$\left(2\right)$	$S{F}_6\to {90}^o$	$12$
$\left(3\right)$	$I{F}_7\to {90}^o$	$10$
$\left(4\right)$	$I{F}_5\to {90}^o$	$8$

• A. $\left(1\right)$
• B. $\left(2\right)$
• C. $\left(3\right)$
• D. $\left(4\right)$

Answer 1

The correct option is D $\left(4\right)$

REF.Image.

There are no bond angle of 90 degree

in $I{F}_5$, due to lone pair repulsion

bond angle decreases.