Chemistry · 2019
JEE Main · 12 April 2019, Shift 1 · Q56
The mole fraction of a solvent in aqueous solution of a solute is 0.8. The molality (in mol kg^-1 ) of the aqueous solution is:
The mole fraction of a solvent in aqueous solution of a solute is 0.8. The molality (in $\displaystyle \mathrm{mol} \mathrm{kg}^{-1}$ ) of the aqueous solution is :
Official answer
(1)
$\displaystyle 13.88$
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JEE Main 2019 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.