Soft drinks include:
A. carbonic acid
B. tartaric acid
C. citric acid
D. oxalic acid
Answer: Option A
A. carbonic acid
B. tartaric acid
C. citric acid
D. oxalic acid
Answer: Option A
Traditional 'battery' contains which of the following chemicals?
A. Ethylene glycol
B. Sulphuric acid
C. Sodium bicarbonate
D. Ethanol
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