CBSE Class 12 · 2008 · All India · Redox Reactions and ElectrochemistryVery Short Answer

What is meant by a primary battery? Give an example.

Answer: A cell in which the reaction occurs only once — it cannot be recharged; e.g. the dry cell (Leclanché) or mercury cell.

Solution

A primary battery is one in which the cell reaction occurs only once: after use the battery becomes dead and cannot be recharged or reused.
Examples: the dry cell (Leclanché cell), the mercury cell.

CBSE Class 12 Board · 2008 · All India · Subjective

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