is this right??
Baking soda (chemically known as sodium bicarbonate or potassium bicarbonate) can also be used as a fire extinguisher. These compounds release carbon dioxide (CO₂) when exposed to heat.

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Solution

Baking soda is sodium bicarbonate but not potassium bicarbonate.
Both these compounds are used in extinguishing small fire because they decompose on heating and produce carbon dioxide gas which suppresses fire.
$2 N a H C O_{3} \overset{∆}{\to} N a_{2} C O_{3} + H_{2} O + C O_{2} S o d i u m b i c a r b o n a t e 2 K H C O 3 \overset{∆}{\to} K_{2} C O_{3} + H_{2} O + C O_{2} P o t a s s i u m b i c a r b o n a t e$

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