MCQ
In fire extinguisher, pyrene is
- A$C{O_2}$
- ✓$CC{l_4}$
- C$C{S_2}$
- D$CHC{l_3}$
✓
Answer
Correct option: B.
$CC{l_4}$
b
(b) $CC{l_4}$ 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.
(b) $CC{l_4}$ 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
$CC{l_4} + {H_2}O \to \mathop {COC{l_2}}\limits_{{\rm{Phosgene}}} + 2HCl$
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