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Question

Which of the following is the reducing agent in ZnO (l) +C (s)Zn (s) +CO (g)


A
Zn
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B
O
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C
C
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D
CO
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Solution

The correct option is C C
A reducing agent or reductant is a substance which supplies hydrogen or any other electropositive element or removes oxygen or any other electronegative element. Alternatively, a reducing agent is that substance which itself undergoes oxidation in a chemical reaction.

Here, ZnO is reduced to metallic Zn and C is oxidised to CO. Thus, C is the reducing agent here.

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