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KCET 2021
MCQ (Single Correct Answer)
+1
-0

The vapour pressure of pure liquids $$A$$ and $$B$$ are 450 and $$700 \mathrm{~mm}$$ of $$\mathrm{Hg}$$ at $$350 \mathrm{~K}$$ respectively. If the total vapour pressure of the mixture is $$600 \mathrm{~mm}$$ of $$\mathrm{Hg}$$, the composition of the mixture in the solution is

A
$$\chi_A=0.4, \chi_B=0.6$$
B
$$\chi_A=0.6, \chi_B=0.4$$
C
$$\chi_A=0.3, \chi_B=0.7$$
D
$$\chi_A=0.7, \chi_B=0.3$$
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