Question

May I get the answer of Option C?

Answer 1

Answer:

So when iron react with copper oxide it displace the copper from its oxide as it is more reactive as compared to the copper. Copper oxide is reduced to copper by the iron. You will observe a glow when iron react with copper oxide and brown elemental copper will be formed.

Answer 2

Answer:

you will absorb a glow when iron react with copper and brown elementad copper will form.

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