# Which gas is used to extinguish fire? with Answer - Everyday Science Mcqs | ExamZone

> Solved MCQ: Which gas is used to extinguish fire? Correct Answer: C. Carbon Dioxide. Verified answer explanation for FPSC, PPSC, MDCAT, NTS, and CSS competitive exam preparation.

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# Which gas is used to extinguish fire?

Direct Answer & Quick Reference

The correct option is **C. Carbon Dioxide**.

Carbon dioxide (CO2) is used in some hand-held extinguishers and in fixed systems to displace oxygen and smother the fire. CO2 is used in some dry chemical (powder) hand-held and w...

A. Nitrous Oxide

B. Methane

C. Carbon Dioxide **(Correct Answer)**

D. Carbon Dioxide & Nitrous Oxide

Verified Key: C. Carbon Dioxide
Solved by 4,667+ students

**Detailed Explanation & Reference:**

Carbon dioxide (CO2) is used in some hand-held extinguishers and in fixed systems to displace oxygen and smother the fire. CO2 is used in some dry chemical (powder) hand-held and wheeled extinguishers as a propellant to expel the agent (dry chemical) which, through a chemical reaction, extinguishes the fire.

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