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DELHI POLICEDELHI POLICE Hard Mock Set 3Hard GK

DELHI POLICE Mock Test Set 3, Q79: Identify the correct answer for gas used in many electrical fire extinguishers.

A. Oxygen
B. Nitrogen dioxide
C. Carbon dioxide
D. Hydrogen
Correct Answer: C. Carbon dioxide
Explanation: CO2 does not support combustion. Category: DELHI POLICE. Set: 3.
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