When \(Mn{O}_{2}\) and \({H}_{2}S{O}_{4}\) is added to a salt (A), the greenish yellow gas liberated as salt (A) isEndFr…
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When \(Mn{O}_{2}\) and \({H}_{2}S{O}_{4}\) is added to a salt (A), the greenish yellow gas liberated as salt (A) isEndFragment
[JEE Main 2024, 04 Apr (Shift 2)]
✓ Correct answer: d)
\({\mathrm{NH}}_{4}\mathrm{Cl}\)
Explanation
The greenish-yellow gas is chlorine (Cl₂).
MnO₂ + H₂SO₄ (conc.) generates nascent oxidizing conditions and can oxidize chloride ions (Cl⁻) to chlorine gas.
Reaction: 2Cl⁻ → Cl₂ (greenish-yellow gas)
Among the options, only NH₄Cl contains chloride ions.
So, NH₄Cl → Cl⁻ → Cl₂ (gas formed)
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