A) hydrogen
B) oxygen
C) carbon dioxide
D) nitrogen dioxide
Correct Answer: C
Solution :
Vinegar is acetic acid and baking soda is sodium hydrogen carbonate (a base). Whenever an acid reacts with a metal carbonate it produces carbon dioxide gas. \[C{{H}_{3}}COOH+NaHC{{O}_{3}}\to C{{H}_{3}}COONa+{{H}_{2}}O+C{{O}_{2}}\]
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