In alcohols, carbon and oxygen atom are

$sp^3$ and $sp^3$ hybridised respectively

The correct answer is Option (1) → $sp^3$ and $sp^3$ hybridised respectively

In alcohols, carbon and oxygen atoms are $sp^3$ and $sp^3$ hybridised respectively.

Reasoning:

• The carbon bonded to $-OH$ in alcohols forms four sigma bonds $\rightarrow$ tetrahedral geometry $\rightarrow sp^3$ hybridised.
• Oxygen in $-OH$ has two sigma bonds ($O-H$ and $O-C$) and two lone pairs $\rightarrow$ steric number $4 \rightarrow sp^3$ hybridised.

Hence, both carbon and oxygen in alcohols are $sp^3$ hybridised.