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MHT CET202020 Oct 2020Evening ShiftChemistrys Block ElementsActual

Which of the following compound is used as fire extinguisher?

Options

  1. ANaHCO ₃
  2. BNa ₂ CO ₃
  3. CNaOH
  4. DNa ₂ SO ₄

Correct answer

A. NaHCO ₃

Step-by-step solution

When the fire extinguisher is operated by pressing the knob on it, the sulphuric acid gets mixed with sodium bicarbonate solution producing a lot of carbon dioxide gas. Carbon dioxide gas is neither combustible nor helps combustion. Hence, sodium bicarbonate is used in fire extinguishers

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