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MHT CET Chemistry question

ChemistrySolutionsMHT CET

The mass of a non-volatile solute of molar mass 40 g that should be dissolved in 114 g of octane to lower its vapour pressure by 20% is

Answer: (D)

Solution

A 20% lowering means ; octane (M = 114) mol, so gives $n =

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Question ID VK-061352