Multiple choice

Which one of the following acids is used in battery?

  1. Hydrochloric acid

  2. Hydrofluoric acid

  3. Sulphuric acid

  4. Sulphurous acid
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sulphuric acid is the primary electrolyte used in lead-acid batteries, commonly found in automobiles and UPS systems. It's chosen because it's relatively inexpensive, has good conductivity, and participates in reversible chemical reactions during charging and discharging. Hydrochloric acid would corrode metal components, while hydrofluoric acid is extremely hazardous and attacks glass.

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