Q. Assertion : The bond angle image in alcohols is slightly less than the tetrahedral angle.
Reason : In alcohols, the oxygen of the group is attached to carbon by a sigma bond formed by the overlap of a hybridised orbital of carbon with hybridised orbital of oxygen.

 3464  215 Alcohols Phenols and Ethers Report Error

Solution:

The bond angle image in alcohols is slightly less than the tetrahedral angle due to the repulsion between the unshared electron pairs of oxygen.