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Science · 2023 · 1 mark
CBSE 2023 · Region 1 · Set 1 · Q3
$\displaystyle \mathrm{MnO}_{2}+x \mathrm{HCl} \rightarrow \mathrm{MnCl}_{2}+\mathrm{y} \mathrm{H}_{2} \mathrm{O}+\mathrm{z} \mathrm{Cl}_{2}$ In order to balance the above chemical equation, the values of $\displaystyle x, \mathrm{y}$ and z respectively are :
Official answer
From CBSE’s own marking scheme for this paper.
(C)
$\displaystyle 4, 2, 1$
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CBSE Class 10 Science past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.