Question

Most favourable conditions for the alcoholic fermentation of sugar is:

• A. high concentration of solution, low temperature, plenty of air supply
• B. low concentration of sugar solution, high temperature, absence of air
• C. low concentration of sugar solution, low temperature, absence of air
• D. none of these

Answer 1

The correct option is C low concentration of sugar solution, low temperature, absence of air

Alcoholic Fermentation is the process of bio-decomposition of a compound under anaerobic conditions. Yeast is added to the dilute sugar solution to provide enzyme Zymase, required for the reaction. A low temperature and low sugar concentration is necessary.
$C_{12}{H}_{22}{O}_{11}\stackrel{Zymase}{\to }{C}_2{H}_{5}OH+C{O}_2+Energy$