Lactic acid is a:
A. Three-carbon molecule
B. One-carbon molecule
C. Two-carbon molecule
D. Four-carbon molecule
Answer: Option A
A. Three-carbon molecule
B. One-carbon molecule
C. Two-carbon molecule
D. Four-carbon molecule
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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