MCQ
$X$ in the above reaction is


- A$HN{O_3}$
- B${O_2}$
- C${O_3}$
- ✓$KMn{O_4}$


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Given : Atomic masses of $C , H$ and $N$ are $12,1$ and $14\, amu$ respectively.
The molar mass of the compound $A$ is $162\, g\, mol ^{-1}$.