Question

Dry powder fire extinguisher contains

• A. sand
• B. sand and $Na_2CO_3$
• C. sand and baking soda
• D. sand and $K_2CO_3$.

Answer 1

Answer: (C)

sand and baking soda

Answer 2

Mixture of sand $(SiO_2)$ and baking soda $(NaHCO_3)$ is used as a dry powder fire extinguisher.