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Chemistry Medium FPSC PPSC NTS Uploaded: 14 Jul 2026

Which acid is used in car batteries as the electrolyte?

  • A Sulfuric acid
  • B Hydrochloric acid
  • C Nitric acid
  • D Acetic acid
Correct Answer: Option A — Sulfuric acid
Explanation:
Sulfuric acid H2SO4 is used as the electrolyte in lead-acid car batteries where it facilitates the electrochemical reactions between lead electrodes to store and release electrical energy.
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