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Question

Question: Potassium magnate (K<sub>2</sub>MnO<sub>4</sub>) is formed when...

Potassium magnate (K2MnO4) is formed when

A

Cl2 is passed into an aqueous solution of KMnO4

B

MnO2 is fused with KOH

C

Formaldehyde reacts with KMnO4 in the presence of strong alkali

D

KMnO4 reacts with conc. H2SO4

Answer

Formaldehyde reacts with KMnO4 in the presence of strong alkali

Explanation

Solution

MnO4– is reduced to MnO42– by HCHO in the presence of strong alkali.