Question

In the formation of certain compound, the central atom uses its hybrid orbital and has a bond angle aroumd it as ${105}^{\circ }$.The percentage of s-character in the hybrid orbital is likely to be ________________.

• A. $20-25\%$
• B. $35-40\%$
• C. $10-15\%$
• D. $23-25\%$

Answer 1

The correct option is A $20-25\%$

we have

$cos{105}^0=\frac{s}{s-100}$

we get s-character = 20%