NEET UG 2021 · Zoology · Question 183
NEET 2021 Zoology, question 183
Question 183 of the NEET 2021 paper (code O1) is a Zoology question from Microbes in Human Welfare. Its idea, Microbial Organic Acids, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 3.
Updated 2026-10-08
Q183 · Zoology
Match List - I with List - II.
| List - I | List - II |
|---|---|
| (a) Aspergillus niger | (i) Acetic Acid |
| (b) Acetobacter aceti | (ii) Lactic Acid |
| (c) Clostridium butylicum | (iii) Citric Acid |
| (d) Lactobacillus | (iv) Butyric Acid |
Choose the correct answer from the options given below.
- 1(a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
- 2(a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
- 3(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)Official answer
- 4(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
Official answer: option 3 · NTA final answer key
Same idea
The only question on Microbial Organic Acids
No other NEET paper from 2017–2026 tested this exact idea.
Microbial Organic Acids: every question and how it was framed
The chapter
Microbes in Human Welfare in ten years of NEET
16 questions from 2017–2026, asked in 9 of 10 papers, about 1.6 a paper. Microbes in Human Welfare alone had 16.