Organic Compounds Containing Halogens Question 27
Question: In fire extinguisher, pyrene is
[DPMT 1985]
Options:
A) $ CO_2 $
B) $ CCl_4 $
C) $ CS_2 $
D) $ CHCl_3 $
Show Answer
Answer:
Correct Answer: B
Solution:
$ CCl_4 $ is stable to red heat. Its vapours are highly non-inflammable i.e. do not catch fire. It is because of this property $ CCl_4 $ is used as a fire extinguisher.
But now a days its use as a fire extinguisher is restricted because with water vaporous. It forms highly poisonous phosgene gas $ CCl_4+H_2O\to \underset{Phosgene}{\mathop{COCl_2}}+2HCl $
BETA
