Question

Which of the following sets of components form homogenous mixture?

Answer 1

Correct option is D. Ethyl alcohol$$+$$Water
The homogenous mixture has all the components in the same phase.

Solubility of alcohols and phenols in water is due to their ability to form hydrogen bonds with water molecules. The solubility decreases with increase in size of alkyl/aryl (hydrophobic) groups. Several of the lower molecular mass alcohols (ethyl alcohol) are miscible with water in all proportions.

Phenol+ water is less homogeneous than ethyl alcohol+water beacause of bigger size of aryl group in phenol.
$$\therefore$$ option D is correct.