Question

How many types of hybridisation are possible for complexes with a coordination number of 4?

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

The correct option is B 2

According to VBT, a complex with CN=4 can have two possible types of hybridisation and hence two geometries.
$s{p}^3$ hybridisation results in a terahedral structure. $ds{p}^2$ hybridization results in square planar geometry.
Hence, option (b) is the correct answer.