Question:
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 ?
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 ?
Updated On: Jul 9, 2024
- 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 is C
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.
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.
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