NEET 1995 · Class 12

Microbes in Human Welfare

The citric acid is produced by

  1. (A)Candida utilis
  2. (B)Azotobacter suboxydans
  3. (C)Aspergillus niger
  4. (D)Streptococcus lactis

The NCERT line that answers it

Verbatim line

Examples of acid producers are *Aspergillus niger* (a fungus) of citric acid, *Acetobacter aceti* (a bacterium) of acetic acid; *Clostridium butylicum* (a bacterium) of butyric acid and *Lactobacillus* (a bacterium) of lactic acid.

Chapter
Microbes in Human Welfare
Section
8.2.3 Chemicals, Enzymes and other Bioactive Molecules
Page
4
Words matched
33 of 33

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states 'Aspergillus niger (a fungus) of citric acid', which directly answers the MCQ by identifying Aspergillus niger as the producer of citric acid.

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Every one traced to the exact sentence in NCERT that answers it, including 90% of the 2026 paper. Sit a mock on the real NEET 2027 computer interface and every mark you drop comes back with its line attached.

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Question text is reproduced from the published NEET 1995 paper for study and commentary. NCERT text is quoted, not redistributed; textbooks remain at ncert.nic.in. Our mapping method, including its measured error rates, is published at /methodology.