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
$CC{l_4} + {H_2}O \to \mathop {COC{l_2}}\limits_{{\rm{Phosgene}}} + 2HCl$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
$1^o, 2^o, 3^o$ alcohols are distinguished by
→$C{H_3} - Br + \begin{array}{*{20}{c}}
{\,\,\,\,\,C{H_3}} \\
| \\
{NaO - C - C{H_3}} \\
| \\
{\,\,\,\,\,\,C{H_3}}
\end{array} \to ?$
→{\,\,\,\,\,C{H_3}} \\
| \\
{NaO - C - C{H_3}} \\
| \\
{\,\,\,\,\,\,C{H_3}}
\end{array} \to ?$
The percentage of formaldehyde in formalin is:
The major product of the following reaction
Which of the following compounds will form hydrocarbon on reaction with Grignard reagent ?
In $P_4$ (tetrahedral)
→In which of the following, tendency towards formation of coloured ions is maximum
Change in volume when $10\,\,ml$ of phosphine is decomposed
→One gas bleaches the colour of flowers by reduction while the other by oxidation, the two gases respectively are
Give the IUPAC name of the product due to acetylation of a Aniline: