Select the correct option:
A gas is colorless, odorless, heavier than air and extinguishes. Name the gas.
Select the correct option:
A gas is colorless, odorless, heavier than air and extinguishes. Name the gas.
The correct option is B Carbon dioxide
The explanation for the correct Option B: Carbon dioxide (CO2) is a colorless, odorless gas, denser than air that occurs naturally in the earth's atmosphere.
The explanation for the incorrect Option C: Hydrogen is 14 times lighter than air but cant used alone as a fire extinguisher however when in the combination with oxygen can be used as a fire extinguisher.
The explanation for the incorrect Option A: It is not used as an extinguishing agent because of poor performance. It is slightly lighter than air when it reaches room temperature
The explanation for the incorrect Option D: Oxygen is non-flammable and Oxygen is denser than both air and nitrogen.
Concluding Statement: From the above reasons, Option B is the correct answer.
Carbon dioxide
The explanation for the correct Option B: Carbon dioxide (CO2) is a colorless, odorless gas, denser than air that occurs naturally in the earth's atmosphere.
The explanation for the incorrect Option C: Hydrogen is 14 times lighter than air but cant used alone as a fire extinguisher however when in the combination with oxygen can be used as a fire extinguisher.
The explanation for the incorrect Option A: It is not used as an extinguishing agent because of poor performance. It is slightly lighter than air when it reaches room temperature
The explanation for the incorrect Option D: Oxygen is non-flammable and Oxygen is denser than both air and nitrogen.
Concluding Statement: From the above reasons, Option B is the correct answer.
