1.

Soda acid fire extinguishers contains :a) sodium carbonate B) sodium hydrogen carbonate ,sulphuric acid C) sodium carbonate, hydrochloric acid D )sodium hydrogen carbonate, hydrochloric acid

Answer»

Soda acid fire extinguishers contains :a) sodium carbonate

B) sodium hydrogen carbonate ,sulphuric acid

C) sodium carbonate, hydrochloric acid

D )sodium hydrogen carbonate, hydrochloric acid



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