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The boiling point of 0.2 mol kg $^{-1}$ solution of X in water is greater than the equimolal solution of Y in water. Which one of the following statements is true in this case?

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Solutions

2015

chemistry

Molecular mass of X is greater than the molecular mass of Y.

Molecular mass of X is less than the molecular mass of Y.

Y is undergoing dissociation in water while X undergoes no change.

X is undergoing dissociation in water.

Explanation

To solve this problem, we need to understand the concept of boiling point elevation, which is a colligative property. $\\$ Colligative properties depend on the number of solute particles in a solution, not on the identity of the solute. $\\$ The boiling point elevation $(\Delta T_b)$ is given by: $\\ \Delta T_b = i \cdot K_b \cdot m \\$

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

Explanation

Our AI powered practice platform can help you achieve your doctor dream.

The boiling point of 0.2 mol kg $^{-1}$ solution of X in water is greater than the equimolal solution of Y in water. Which one of the following statements is true in this case?