Acidified potassium permanganate solution is decolourised by [MNR 1984

1.	Acidified potassium permanganate solution is decolourised by [MNR 1984]
A.	Bleaching powder
B.	White vitriol
C.	Mohr's salt
D.	Microcosmic salt
E.	Laughing gas
Answer» D. Microcosmic salt

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Acidified potassium permanganate solution is decolourised by [MNR 1984]

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