Which of the following is an organic acid?
A. Carbonic acid
B. Sulphuric acid
C. Nitric acid
D. Oxalic acid
Answer: Option D
A. Carbonic acid
B. Sulphuric acid
C. Nitric acid
D. Oxalic acid
Answer: Option D
Traditional 'battery' contains which of the following chemicals?
A. Ethylene glycol
B. Sulphuric acid
C. Sodium bicarbonate
D. Ethanol
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