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Q.

1.0 molal aqueous solution of an electrolyte X3Y2 is 25% ionized. The boiling point of the solution is : Kb for H2O=0.52Kkg/mol

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a

375.5 K

b

374.04 K

c

377.12 K

d

373.25 K

answer is B.

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Detailed Solution

X3Y23X2++2Y3

1α  3α   3α

 i=1+4α=2

ΔTb=2×0.52×1=1.04

 Tb=373+1.04 = 374.04 K

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