The by-product of fermentation of sugar is?

A. carbon(IV) oxide.
B. ethanoic acid.
C. propanol
D. propan-1, 2, 3- triol.

Correct Answer:

Option A – carbon(IV) oxide.

Explanation

Ethanol fermentation, also called alcoholic fermentation, is a biological process which converts sugars such as glucose, fructose, and sucrose into cellular energy, producing ethanol and carbon dioxide as by-products