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

Match the species given in List-$I$ with their correct geometric shapes given in List-$II$.

List-$I$	List-$II$
$(1)$ ${H_3O^+}$	$(A)$ Linear
$(2)$ ${HC \equiv CH}$	$(B)$ Angular
$(3)$ ${ClO_2^-}$	$(C)$ Tetrahedral
$(4)$ ${NH_4^+}$	$(D)$ Trigonal bipyramidal
	$(E)$ Pyramidal

The bond angle between two bonds in a water molecule is ............... $^o$?

The number of species below that have two lone pairs of electrons on their central atom is ..... . (Round off to the nearest integer)
$SF_{4}, BF_{4}^{-}, ClF_{3}, AsF_{3}, PCl_{5}, BrF_{5}, XeF_{4}, SF_{6}$

Which of the following molecular shapes is not obtained from the trigonal bipyramidal electronic geometry of the central atom?

The molecular shapes of $SF_4$, $CF_4$ and $XeF_4$ are