McqMate
| Q. |
The anode in a dry cell consists of – |
| A. | Copper |
| B. | Zinc |
| C. | Cadmium |
| D. | Graphite |
| Answer» B. Zinc | |
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Explanation: A "dry-cell" battery is essentially comprised of a metal electrode or graphite rod (elemental carbon) surrounded by a moist electrolyte paste enclosed in a metal cylinder. The cathode is composed of a form of elemental carbon called graphite, which serves as a solid support for the reduction halfreaction. A thin zinc cylinder serves as the anode and it undergoes oxidation. |
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