We know that for an non-electrolyte
ΔTf=Kfmwherem=molality
ΔTfyΔTfx=kf⋅mykf⋅mx=My1Mx1
⇒41=MxMy
⇒Mx:My=1:0.25
Two solutions A and B are prepared by dissolving 1g of non-volatile solutes X and Y. respectively in 1kg of water. The ratio of depression in freezing points for A and B is found to be 1:4. The ratio of molar masses of X and Y is
Held on 25 Jul 2022 · Verified 6 Jul 2026.
1:4
1:0.25
1:0.20
1:5
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