Question

Select the odd statement with respect to a phase reaction.

(a) Saturated solution

(b) Equilibrium solution

(c) Concentric solution

(d) Amorphous solution

The question was posed to me in an internship interview.

The doubt is from Gibb’s Phase Rule topic in section Phase Rule of Engineering Chemistry I

Answer 1

The correct answer is (a) Saturated solution

Explanation: A terminal solution, an intermediate solution, an equilibrium solution and concentric solutions, are the ones which take part in a phase reaction. On the other hand, a saturated solution is involved in the Lever system.