Zinc-copper couple that can be used as a reducing agent is obtained by:

mixing zinc dust and copper gauze.

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zinc coated with copper.

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copper coated with zinc.

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zinc and copper wires welded together.

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Solution

The correct option is A zinc coated with copper.
Zinc-copper couple, which can be used as a reducing agent, is obtained by coating zinc with copper. Zinc is dipped in a solution of copper salt. It displaces copper and copper gets deposited over the surface of zinc.

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Zinc-copper couple that can be used as a reducing agent is obtained by:

The correct option is A zinc coated with copper.Zinc-copper couple, which can be used as a reducing agent, is obtained by coating zinc with copper. Zinc is dipped in a solution of copper salt. It displaces copper and copper gets deposited over the surface of zinc.

The correct option is A zinc coated with copper.
Zinc-copper couple, which can be used as a reducing agent, is obtained by coating zinc with copper. Zinc is dipped in a solution of copper salt. It displaces copper and copper gets deposited over the surface of zinc.