NEET Previous Year Question

Which one of the following pairs is wrongly matched?

Topic: NEET PYQ

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

  1. AColiforms – Vinegar
  2. BMethanogens – Gobar gas
  3. CYeast – Ethanol
  4. DStreptomycetes – Antibiotic

Correct answer: A

Solution

(a) Coliforms are bacteria like E. coli, mostly found in the intestines, and they do not produce vinegar.
Vinegar is made by Acetobacter, which oxidizes ethanol into acetic acid.
The other pairs are correctly matched:
Methanogens → Gobar gas (produce methane)
Yeast → Ethanol (ferments sugars)
Streptomycetes → Antibiotic (produce antibiotics like streptomycin)

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