Chemistry
Grade-8
Easy

Question

Identify the substance which is used for making the electrodes of dry cells from the below options.

  1. Coke
  2. Gas carbon
  3. Sugar charcoal
  4. Carbon dioxide

hintHint:

A material which won't interfere in the electrochemical reaction is used.

The correct answer is: Gas carbon


    The correct option is b)Gas carbon.
    The carbon rods in dry batteries do not participate in the electrochemical reactions that take place in the battery to generate the current. However, carbon rods simply allow electron flow.

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