Question:
A mixture of $2.3 \,g$ formic acid and $4.5 \,g$ oxalic acid is treated with cone. $H_2SO_4$. The evolved gaseous mixture is passed through $KOH$ pellets. Weight (in $g$ ) of the remaining product at $STP$ will be
A mixture of $2.3 \,g$ formic acid and $4.5 \,g$ oxalic acid is treated with cone. $H_2SO_4$. The evolved gaseous mixture is passed through $KOH$ pellets. Weight (in $g$ ) of the remaining product at $STP$ will be
Updated On: Apr 15, 2026
- 4.4
- 1.4
- 2.8
- 3
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The Correct Option is C
Solution and Explanation
Gaseous mixture formed is $CO$ and $CO _{2}$ when it is passed through $KOH$, only $CO _{2}$ is absorbed. So the remaining gas is $CO$.
So, weight of remaining gaseous product $CO$ is
$\frac{2}{20} \times 28=2.8\, g$
So, weight of remaining gaseous product $CO$ is
$\frac{2}{20} \times 28=2.8\, g$
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