The increasing electrơn releasing tenden...

The increasing electrơn releasing tendencies of Cu, Ag, Fe and Zn are in the order: (1)Ag, Cu, Fe, Zn (2)Cu, Ag, Fe, Zn (3)Zn, Cu, Fe, Ag (4)Fe, Zn, Cu, Ag

A

Ag, Cu, Fe, Zn'

B

Cu, Ag, Fe, Zn'

C

Zn, Cu, Fe, Ag'

D

Fe, Zn, Cu, Ag'.

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A

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