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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)
    Y is undergoing dissociation in water while X undergoes no change
  • b)
    X is undergoing dissociation in water
  • c)
    Molecular mass of X is greater than the molecular mass of Y.
  • d)
    Molecular mass of X is less than the molecular mass of Y.
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The boiling point of 0.2 mol kg-1 solution of X in water is greater th...
Molality of solution X = molality of solution Y = 0.2
we know that elevation in the boiling point( ΔTb ) of a solution is proportional to the molal concentration of the solution i.e.

ΔTb = Kbm

where, m is the molality of the solution and Kb is molal boiling point constant or ebullioscopic constant.
therefore,

By elevation in boiling point relation

ΔTb = iKbm or ΔTb directly proportional to i

where i is van't Hoff is a factor

Since ΔTb of solution X is greater than ΔTb of solution Y. 
(observed colligative property is greater than normal colligative property).
therefore, i of solution > i of solution Y
therefore solution X undergoing dissociation.
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Most Upvoted Answer
The boiling point of 0.2 mol kg-1 solution of X in water is greater th...
Correct answer is option.b
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The boiling point of 0.2 mol kg-1 solution of X in water is greater than equimolal solution of Y inwater. Which one of the following statements is true in this case ?a)Y is undergoing dissociation in water while X undergoes no changeb)X is undergoing dissociation in waterc)Molecular mass of X is greater than the molecular mass of Y.d)Molecular mass of X is less than the molecular mass of Y.Correct answer is option 'B'. Can you explain this answer?
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The boiling point of 0.2 mol kg-1 solution of X in water is greater than equimolal solution of Y inwater. Which one of the following statements is true in this case ?a)Y is undergoing dissociation in water while X undergoes no changeb)X is undergoing dissociation in waterc)Molecular mass of X is greater than the molecular mass of Y.d)Molecular mass of X is less than the molecular mass of Y.Correct answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The boiling point of 0.2 mol kg-1 solution of X in water is greater than equimolal solution of Y inwater. Which one of the following statements is true in this case ?a)Y is undergoing dissociation in water while X undergoes no changeb)X is undergoing dissociation in waterc)Molecular mass of X is greater than the molecular mass of Y.d)Molecular mass of X is less than the molecular mass of Y.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The boiling point of 0.2 mol kg-1 solution of X in water is greater than equimolal solution of Y inwater. Which one of the following statements is true in this case ?a)Y is undergoing dissociation in water while X undergoes no changeb)X is undergoing dissociation in waterc)Molecular mass of X is greater than the molecular mass of Y.d)Molecular mass of X is less than the molecular mass of Y.Correct answer is option 'B'. Can you explain this answer?.
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