Chemistry · 2022
JEE Main · 29 June 2022, Shift 2 · Q65
A 42.12 %( w / v ) solution of NaCl causes precipitation of a certain sol in 10 hours. The coagulating value of NaCl for the sol is [Given: Molar…
A $\displaystyle 42.12 \%(\mathrm{w} / \mathrm{v})$ solution of NaCl causes precipitation of a certain sol in $\displaystyle 10$ hours. The coagulating value of NaCl for the sol is
[Given: Molar mass : $\displaystyle \mathrm{Na}=23.0 \mathrm{~g} \mathrm{~mol}^{-1} ; \mathrm{Cl}=35.5 \mathrm{~g} \mathrm{~mol}^{-1}$ ]
Official answer
(4)
$\displaystyle 1440 \mathrm{mmol} \mathrm{L}^{-1}$
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JEE Main 2022 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.