Which of the following acids is present in red ants?
A. formic acid
B. tannic acid
C. oxalic acid
D. malic acid
Answer: Option A
A. formic acid
B. tannic acid
C. oxalic acid
D. malic 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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