The structure of $NH_3$ is:

Which of the following is an incorrect statement about $PCl_5$?

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

The three-dimensional structure of $CH_4$ is given below. The bonds are labelled as $W, X, Y$ and $Z$. What are the bonds lying in the plane $(A)$,projecting out of the plane away from the observer $(B)$ and projecting out of the plane towards the observer $(C)$?

Which of the following has a tetrahedral shape?

What is the difference between $NO_2$ and $NO_2^-$? Explain.