Botany-Microbes in Household Products
NEET Botany Microbes in Household Products MCQ Question
Type: MCQ-numerical-Medium-Class 12
If Saccharomyces cerevisiae is used to ferment 200 liters of malted cereal juice to produce beer without distillation, how many liters of ethanol are produced if the fermentation efficiency is 90% and the theoretical ethanol yield is 0.5 liters per liter of juice?
A
90 liters
B
100 liters
C
110 liters
D
120 liters
Correct Answer
Option A
Detailed Explanation
The fermentation efficiency is 90%, and the theoretical yield is 0.5 liters of ethanol per liter of juice. Therefore, 200 liters of juice would theoretically yield 100 liters of ethanol (200 x 0.5). With 90% efficiency, the actual yield is 90 liters (100 x 0.9).
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