Chemistry · 2025
JEE Main · 28 January 2025, Shift 1 · Q53
What is the freezing point depression constant of a solvent, 50 g of which contain 1 g non volatile solute (molar mass 256 g mol^-1 ) and the…
What is the freezing point depression constant of a solvent, $\displaystyle 50$ g of which contain $\displaystyle 1$ g non volatile solute (molar mass $\displaystyle 256 \mathrm{~g} \mathrm{~mol}^{-1}$ ) and the decrease in freezing point is $\displaystyle 0.40$ K ?
Official answer
From NTA’s final answer key for this paper.
(1)
$\displaystyle 5.12 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$
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JEE Main 2025 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.