Q.

The molal elevation constant is the ratio of the elevation in boliing point to

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a

Molarity

b

Molality

c

Mole fraction of solute

d

Mole fraction of solvent.

answer is B.

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Detailed Solution

∆Tb=Kb ×m Kb =∆Tbmmolal elevation constant , Kb is the ratio of  elevation of BP to that of molality of the solution
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