A) acetic acid
B) citric acid
C) ethyl alcohol
D) curd
Correct Answer: C
Solution :
The sugar is fermented by yeast into alcohol and \[C{{O}_{2}}.\]The ethyl alcohol is the main product of beweries. Citric acid is produced by Aspergillus niger (fungus) and acetic acid by Acetobacter aceti (bacterium) whereas curd is produced by Lactobacillus lactis (bacterium).
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