The gas produced in the working of soda-acid type fire extinguisher is

1. carbon dioxide
2. oxygen
3. sulphur dioxide
4. hydrogen

Correct Answer: (a) carbon dioxide

Explanation: The gas produced in the working of soda-acid type fire extinguisher is carbon dioxide. Soda acid type extinguisher acts by cutting off supply of air. It acts on all types of fire except due to electrical and inflammable liquids. The carbon dioxide is liberated by the action of acid on baking soda. It increases the percentage of carbon dioxide in air (CO₂ is non supporter of combustion).

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Updated on: 16-Mar-2023

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