The boiling point of 0.2 mol kg⁻¹ solution of X in water is greater than equimolal

The boiling point of 0.2 mol kg⁻¹ solution of X in water is greater than equimolal solution of Y in water.Which one of the following statements is true in this case

Options

(a) Molecular mass of X is greater than the molecular mass of Y
(b) Molecular mass of X is less than the molecular mass of Y
(c) Y is undergoing dissociation in water while X undergoes no change
(d) X is undergoing dissociation in water

Correct Answer:

X is undergoing dissociation in water

Explanation:

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