Which of the following acid found in Apple?
A. Malic acid
B. Nitric acid
C. Formic acid
D. Sulphuric acid
Answer: Option A
A. Malic acid
B. Nitric acid
C. Formic acid
D. Sulphuric 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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