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Acetic acid is produced commercially by
AAspergillus niger
BAcetobacter aceti
CSaccharomyces cerevisiae
DPropionibacterium species
Answer & Solution
Correct answer: B. Acetobacter aceti
1. Acid producing microbes are matched one to one with their acid.
2. Acetic acid is produced by the bacterium Acetobacter aceti.
3. Aspergillus niger produces citric acid instead.
4. Saccharomyces cerevisiae is used for ethanol, not an acid.
_Source: NCERT Class 12 Biology Ch8 'Microbes in Human Welfare'_
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