Question

________ cells cannot be recharged.

Answer 1

1. Primary cells are those cells that cannot be recharged and a dry cell is an example of a primary cell.
2. A dry cell converts chemical energy into electrical energy.
3. In the case of a dry cell, the electrolyte is in the form of a paste of ammonium chloride and that is why this cell is called a dry cell.
4. A dry cell is packed with a limited amount of chemicals whose chemical reactions produce an electric current.
5. As we keep on drawing energy from the dry cell, the chemicals inside it are used up with time and the cell ultimately stops producing electricity.

Hence, dry cells cannot be recharged.