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Chemistry Question on d -and f -Block Elements

In presence of acidic medium, KMnO4KMnO_4 converts H2SH_2S into

A

Mn only

B

MnS only

C

MnS + S

D

S only

Answer

S only

Explanation

Solution

Acidified KMnO oxidises HS to S only. 2KMnO4+3H2SO4+5H2S−>K2SO4+2MnSO4+5S+8H2O {2KMnO4 + 3H2SO4 + 5H2S -> K2SO4 + 2MnSO4 + 5S + 8H2O}