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 ?
Molecular mass of X is less than the molecular mass of Y
X is undergoing dissociation in water while X undergoes no change.
X is undergoing dissociation in water
Molecular mass of X is greater then the molecular mass of Y.
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The Correct Option isC
Solution and Explanation
${(\Delta T_b)_x > ( \Delta T_b)_y }$ same solvent so, ${K_b} $ is same m is same (given) $i_x . k_b . m > i_y . k_b .m \; \Rightarrow \; i_X > i_y$ so, x is undergoing dissociation in water.