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Fusing MnO2 with KOH and KNO3 gives dark green
AK2MnO4
BKMnO4
CK3MnO4
DMnO
Answer & Solution
Correct answer: A. K2MnO4
Alkaline oxidative fusion takes Mn(IV) to Mn(VI), so the green manganate K2MnO4 forms first.
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