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Solution


Q.

Baking soda is a mixture of:
1 Sodium carbonate and acetic acid  
2 Sodium carbonate and tartaric acid  
3 Sodium hydrogen carbonate and tartaric acid  
4 Sodium hydrogen carbonate and acetic acid  

Ans.

(3)

Baking soda is a mixture of sodium hydrogen carbonate (NaHCO3) and mild edible tartaric acid.