Chemistry · 2023
JEE Main · 11 April 2023, Shift 2 · Q62
What weight of glucose must be dissolved in 100 g of water to lower the vapour pressure by 0.20 mm Hg? (Assume dilute solution is being formed)…
What weight of glucose must be dissolved in $\displaystyle 100$ g of water to lower the vapour pressure by $\displaystyle 0.20$ mm Hg ?
(Assume dilute solution is being formed)
Given : Vapour pressure of pure water is $\displaystyle 54.2$ mm Hg at room temperature. Molar mass of glucose is $\displaystyle 180 \mathrm{~g} \mathrm{~mol}^{-1}$
Official answer
From NTA’s final answer key for this paper.
(1)
3.$\displaystyle 69$ g
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JEE Main 2023 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.