Chemistry · 2018
JEE Main · 16 April 2018, Shift 1 · Q40
The mass of a non-volatile, non-electrolyte solute (molar mass =50 g mol^-1 ) needed to be dissolved in 114 g octane to reduce its vapour pressure to…
The mass of a non-volatile, non-electrolyte solute (molar mass $\displaystyle =50 \mathrm{~g} \mathrm{~mol}^{-1}$ ) needed to be dissolved in $\displaystyle 114$ g octane to reduce its vapour pressure to $\displaystyle 75$%, is :
Official answer
(3)
$\displaystyle 150$ g
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JEE Main 2018 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.