CSEC Chemistry · May/June 2010 · Paper 1 · Question Q47
Which of the following statements are true for the fermentation of carbohydrates to produce ethanol?
I. The enzymes are obtained from yeast.
II. The reaction mixture is kept at 50\ ^\circ\text{C}.
III. Carbon dioxide is a by-product of the reaction.
IV. Ethanol is obtained from the mixture by titration.
- (A)I and III only
- (B)I and IV only
- (C)II and III only
- (D)II and IV only
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