Which of the following hybridisation has the highest percentage of $s-$character?

Match List-$I$ with List-$II$ :

List-$I$ (Species)	List-$II$ (Hybrid Orbitals)
$(a)$ $SF_{4}$	$(i)$ $sp^{3}d^{2}$
$(b)$ $IF_{5}$	$(ii)$ $d^{2}sp^{3}$
$(c)$ $NO_{2}^{+}$	$(iii)$ $sp^{3}d$
$(d)$ $NH_{4}^{+}$	$(iv)$ $sp^{3}$
	$(v)$ $sp$

Choose the correct answer from the options given below :

The outer orbitals of $C$ in ethene molecule can be considered to be hybridized to give three equivalent $sp^2$ orbitals. The total number of sigma $(\sigma)$ and pi $(\pi)$ bonds in ethene molecule is

Example of $sp^2$ hybridization is

State the hybridization and draw the structures of $PCl_3$ and $PCl_5$.

The hybridisation and shape of $I_3^{-}$ ion,respectively,are