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The following reaction takes place in a ...

The following reaction takes place in a lead storage battery during discharging. `Pb + PbO_2 + 4H + SO_4^(-1) rarr 2PbSO_4 +2H_2O`. It is a case of ________ reaction.

A

Redox

B

Disproportionation

C

Comproportionation

D

Metathetical

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