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NEET · Chemistry · STD 12 -1. Solution and colligative properties
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 ?
- A Molecular mass of \(X\) is less than the molecular mass of \(Y.\)
- B \(Y\) is undergoing dissociation in water while \(X\) undergoes no change.
- C \(X\) is undergoing dissociation in water.
- D Molecular mass of \(X\) is greater than the molecular mass of \(Y.\)
Answer & Solution
Correct Answer
(C) \(X\) is undergoing dissociation in water.
Step-by-step Solution
Detailed explanation
\(\Delta T_{b}=i K_{b} m\) For equimolal solutions, elevation in boiling point will be higher if solution undergoes dissociation i.e., \(i>1\)
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