The structure of $NH_3$ is:

$BF_3$ is used as a catalyst in several industrial processes due to its

In both water $(H_{2}O)$ and dimethyl ether $((CH_{3})_{2}O)$,the oxygen atom is the central atom and has the same hybridization,yet they have different bond angles. Which one has a greater bond angle? Give a reason.

The molecular shapes of $XeF_3^+$ and $SNF_3$ species are respectively:

The correct order of $H-M-H$ bond angle is

Fluorine reacts with dilute $NaOH$ and forms a gaseous product $A$. The bond angle in the molecule of $A$ is