Question

The vapour pressure of pure benzene at 25°C is 640 mm Hg and that of solution of solute A is 630 mm Hg. The molality of solution is –
(a) 0.2 m
(b) 0.4 m
(c) 0.5 m
(d) 0.1 m

Answer 1

Hello Friend

Option.B

Thank you

Answer 2

$\huge\mathfrak\pink{anSwEr}$

go for option B)

B) 0.4 m ✔️

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