Chemistry · 2013
JEE Main · 25 April 2013, Shift 1 · Q47
How many grams of methyl alcohol should be added to 10 litre tank of water to prevent its freezing at 268 K? ( K_f for water is 1.86 K kg mol^-1 )
How many grams of methyl alcohol should be added to $\displaystyle 10$ litre tank of water to prevent its freezing at $\displaystyle 268$ K ?
( $\displaystyle K_f$ for water is $\displaystyle 1.86 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$ )
Official answer
(3)
$\displaystyle 886.02 \mathrm{~g}$
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JEE Main 2013 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.