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Q.

When 1 mole of a solute is dissolved in 1 kg of H2O, boiling point of solution was found to be 100.5oC. Kb for H2O is:

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a

0.5

b

100

c

100.5

d

95.5

answer is A.

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Detailed Solution

ΔTb=100.5−100=Kb×1 ∴ Kb=0.5
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