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Q.

Is it true that the carbon rod in a dry cell doesn’t participate in the electrochemical reactions?

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a

False

b

True

answer is A.

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Detailed Solution

The above statement is True.
In a dry cell, the carbon rod doesn't part in the electrochemical reactions that occur in the cell to produce an electric current. On the other hand, the carbon rod allows electrons to flow. The carbon powder increases the electrical conductivity of manganese dioxide

(Mn O_{2})

and keeps the electrolyte wet.

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