Find the maximum number of atoms present in the same plane in a $PCl_5$ molecule.

Between the dichloronitronium ion $[ONCl_2]^+$ and thionyl chloride $(OSCl_2)$,which has a higher $Cl-\hat{X}-Cl$ bond angle? (where $X$ is the central atom $N$ or $S$)

The bond angles $b_1, b_2, b_3$ in the above structure of $Al_2Cl_6$ are respectively (in $^{\circ}$):

What is the shape of the $ClF_3$ molecule?

Match the following List-$A$ and List-$B$ correctly.

List-$A$	List-$B$
$(1)$ $AB_3E_2$	$(A)$ $BrF_5$
$(2)$ $AB_2E_2$	$(B)$ $NH_3$
$(3)$ $AB_5E$	$(C)$ $H_2O$
$(4)$ $AB_3E$	$(D)$ $ClF_3$

Which of the following molecules does not have a lone pair of electrons in the valence shell of the central atom?