Which of the following contains Citric acid?
A. Tamarind
B. Sour milk
C. Orange
D. Tomato
Answer: Option C
A. Tamarind
B. Sour milk
C. Orange
D. Tomato
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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