MHT CET Chemistry question

In the aqueous solution of sulphuric acid the mole fraction of water is 0.85. the molality of the solution is :

Answer: (C)

Solution

Mole fraction of H₂SO₄ = 0.15, so for 1 mol of solution there are 0.15 mol acid and 0.85 mol (15.3 g)

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Question ID VK-041191