Question

The tetrahedral arrangement of perchlorate ion is due to :

• A. presence of a lone pair of electrons.
• B. trigonal bipyramidal shape of the ion.
• C. $s{p}^3$ hybridisation.
• D. $s{p}^2$ hybridisation.

Answer 1

The correct option is C $s{p}^3$ hybridisation.

In perchlorate ion, $O-Cl-O$ bond angle is approx. ${109.5}^o$ due to four groups of bonding electrons and no lone pairs of electrons.

Due to $s{p}^3$ hybridisation of the central Cl atom, it has a tetrahedral structure.