NEET · Chemistry · STD 12 - 4. d and f- block elements
Name the gas that can readily decolourise acidified \(KMnO_4\) solution.
- A \(SO_2\)
- B \(NO_2\)
- C \(P_2O_5\)
- D \(CO_2\)
Answer & Solution
Correct Answer
(A) \(SO_2\)
Step-by-step Solution
Detailed explanation
\(\mathrm{KMnO}_{4}+\mathrm{SO}_{2} \rightarrow \mathrm{MnSO}_{4}+\mathrm{H}_{2} \mathrm{SO}_{4}+\mathrm{K}_{2} \mathrm{SO}_{4}\) Where \(MnSO_4\) is colourless solution
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