P Block Elements Question 405
$ CO_2 $ and $ N_2 $ are non-supporters of combustion. However for putting out fires $ CO_2 $ is preferred over $ N_2 $ because $ CO_2 $ displaces oxygen, which is necessary for combustion.
Options:
A) does not ignite
B) forms non-combustible products with burning substances
C) is denser than nitrogen gas
D) is a more reactive gas
Show Answer
Answer:
Correct Answer: C
Solution:
$ CO_2 $ being more dense covers the igniting material more effectively than $ N_2 $ .
BETA
