The wine is prepared by the process of
A. fermentation
B. catalysation
C. conjugation
D. displacement
Answer: Option A
A. fermentation
B. catalysation
C. conjugation
D. displacement
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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