Question

Which of the following is used in fire extinguishers.

• A. $CH_{4}$
• B. $CHCl_{3}$
• C. $CH_{2}Cl_{2}$
• D. $CCl_{4}$

Answer 1

Answer: (D)

$CCl_{4}$

Answer 2

Its vapours are non inflammable (i.e. do not catch fire). Hence used as fire extinguishers under the name pyren.