Question

Most efficient overlapping is

(a)$s{p}^2$−$s{p}^2$

(b)$s{p}^3$−$s{p}^3$

(c)s−s

(d)sp−sp

Explain

Answer 1

Option d) sp-sp is the correct answer.

As we know that hybrid orbital always gives better overlap than pure orbitals because of the same size and equivalent energy. Out of various hybrid orbitals, the maximum efficient overlapping is shown by sp-sp hybrid orbitals as there are 50% s and 50% p.and s orbital is closest to nucleus hence overlapping is best in this case. That is why sp-sp has the shortest bond length also.