Question

A complex having _____ geometry can have only one type of hybridisation.

• A. tetrahedral
• B. octahedral
• C. linear
• D. none of the above

Answer 1

The correct option is C linear

Complexes having octahedral geometry can have either $s{p}^3{d}^2$ or $d^{2}s{p}^3$ hybridisation depending on either the outer or inner d orbitals are involved in the hybridisation respectively.
Similary, tetrahedral also have two hybridisation $s{p}^3$ and $d^{3}s$.
Linear geometry has only one hybridisation i.e., $sp$.
Thus option (c) is the correct answer.