Which is a tribasic acid?
A. Succinic acid
B. Lactic acid
C. Citric acid
D. Valeric acid
Answer: Option C
A. Succinic acid
B. Lactic acid
C. Citric acid
D. Valeric acid
Answer: Option C
Traditional 'battery' contains which of the following chemicals?
A. Ethylene glycol
B. Sulphuric acid
C. Sodium bicarbonate
D. Ethanol
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