Question

Which one of the following compounds is used as a chemical in certain type of fire extinguishers?

• A. Baking soda
• B. Soda ash
• C. Washing soda
• D. Caustic Soda

Answer 1

Answer: (A)

Baking soda

Answer 2

Baking soda $(NaHCO_3)$ is used in certain type of fire extinguishers because it decomposes at high temperature to produce $CO_2$ which extinguishes fire.

$2NaHCO_3(s) →Δ Na_2CO_3(S) + H_2O ↑ + CO_2 ↑$

So, the correct option is (A): Baking soda.