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Most favourable conditions for the alcoholic fermentation of sugar is:

A

high concentration of solution, low temperature, plenty of air supply

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B

low concentration of sugar solution, high temperature, absence of air

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C

low concentration of sugar solution, low temperature, absence of air

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D

none of these

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Solution

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.
$C_{12} H_{22} O_{11} Z y m a s e \to C_{2} H_{5} O H + C O_{2} + E n e r g y$

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