WBCS.LIVE practice question

Which salt is used in fire extinguishers for electrical fires?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Sodium chloride
  2. Potassium bicarbonate
  3. Calcium carbonate
  4. Ammonium nitrate

Correct answer and explanation

Correct answer: Potassium bicarbonate