📝 Multiple Choice Question
General-science
Which polyatomic ionic compound is a white, crystalline powder used in fire extinguishers and to neutralise acids and bases?
A
Sodium Bisulphite
B
Sodium Thiosulphate
C
Sodium Chromate
D
Sodium Bicarbonate
Explanation
Sodium Bicarbonate (baking soda) releases carbon dioxide when heated, making it effective for extinguishing fires and neutralizing acids.
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