This question is about organic chemistry. Ethanol is an organic molecule. (i) Draw the displayed formula of a molecule of ethanol. (ii) Ethanol is manufactured by the reaction of steam with ethene. State two conditions for this process. 1 2

Chemistry

IGCSE&ALevel

CAIE

Exam No：0620_s25_qp_32 Year：2025 Question No：4(b)

Answer:

11.6.1.1. fermentation of aqueous glucose at 25–35 °C in the presence of yeast and in the absence of oxygen

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