NEET Previous Year Question

Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct?

Topic: NEET PYQ

Answer: C. Full step-by-step solution below.

  1. AYeast – statins
  2. BAcetobacter aceti – acetic acid
  3. CClostridium butylicum – lactic acid
  4. DAspergillus niger – citric acid

Correct answer: C

Solution

(c) (a) Yeast - statins → Correct
Monascus purpureus is a yeast that produces statins, which lower blood cholesterol.
(b) Acetobacter aceti - acetic acid → Correct
It converts ethanol into acetic acid (vinegar).
(c) Clostridium butylicum - lactic acid → Incorrect
Clostridium butylicum produces butyric acid, not lactic acid.
(d) Aspergillus niger - citric acid → Correct
It is widely used for the commercial production of citric acid.

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