Question

Which substance undergoes oxidation, reduction and which are oxidising agents and reducing agents in the following reaction:-

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Answer 1

Answer:

ANSWER

MnO

2

+4HCl⟶MnCl

2

+2H

2

O+Cl

2

Oxidation state: +4 −1 +2 0

Increase in oxidation state = Oxidation ⇒

As chlorine increases from −1⟶0⇒ (Oxidation of HCl)

Decrease in oxidation state = Reduction ⇒ As manganese decreases from +4→+2⇒ (Reduction of MnO

2

)

⇒MnO

2

is reduced, HCl is oxidized, MnO

2

is oxidizing agent, HCl is reducing agent