A) \[C{{O}_{2}}\]
B) \[CC{{l}_{4}}\]
C) \[C{{S}_{2}}\]
D) \[CHC{{l}_{3}}\]
Correct Answer: B
Solution :
\[CC{{l}_{4}}\] is stable to red heat. Its vapours are highly non-inflammable i.e. do not catch fire. It is because of this property \[CC{{l}_{4}}\] 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 \[CC{{l}_{4}}+{{H}_{2}}O\to \underset{\text{Phosgene}}{\mathop{COC{{l}_{2}}}}\,+2HCl\]
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