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Chemical synthesis — Question 11

QCAA 2025, Paper 1 · 1 mark

Q11 · 2025 · Paper 1Unclassified1 mark

QUESTION 11

Yeasts are used in the production of ethanol by fermentation to

(A) increase the rate of the reaction.

(B) act as a reactant in the overall reaction.

(C) increase the yield of ethanol and ensure its purity.

(D) produce green ethanol by preventing the production of carbon dioxide.

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