Q.

Which of the following aqueous solutions should have the highest boiling point?

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1.0 M NaOH

1.0 M Na2SO4

1.0 M NH4NO3

1.0 M KNO3

answer is B.

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Detailed Solution

As we know greater the value of van't Hoff factor, higher will be the elevation in boiling point and hence, higher will be the boiling point of solution.Hence, 1.0 M Na2SO4 has highest value of boiling point.

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