Question

The strength of the bonds formed by overlapping of atomic orbitals is in the order:

• A. $s-s>s-p>p-p$
• B. $s-s>p-p>s-p$
• C. $s-p>s-s>p-p$
• D. $p-p>s-s>s-p$

Answer 1

The correct option is C $s-p>s-s>p-p$

The effective overlapping of orbitals decreases in the order:
$s-p>s-s>p-p$
The extent of overlap is higher for a hybrid orbital than their parent orbital and also $s$ orbital than for a p orbital. Higher the extent of overlap, stronger is the bond formed.