Match the LIST-I with LIST-II
| LIST-I | LIST-II | ||
|---|---|---|---|
| Acids | Microbes | ||
| A. | Citric acid | I. | Clostridium butylicum |
| B. | Acetic acid | II. | Acetobacter aceti |
| C. | Butyric acid | III. | Aspergillus niger |
| D. | Lactic acid | IV. | Lactobacillus |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → A-III, B-II, C-I, D-IV
(A) Citric acid — this matches (III) Aspergillus niger. This fungus is used in industry to make citric acid.
(B) Acetic acid — this matches (II) Acetobacter aceti. This bacterium turns the ethanol of fermented juice into acetic acid, which is the acid of vinegar.
(C) Butyric acid — this matches (I) Clostridium butylicum. This bacterium makes butyric acid.
(D) Lactic acid — this matches (IV) Lactobacillus. This bacterium makes lactic acid. It also sets milk into curd by turning the milk sugar into lactic acid.
Note: A similar question was also asked in CUET (UG) 2026 on 26-05-2026 (Slot 1) and on 19-05-2026 (Slot 2), in CUET (UG) 2025 on 13-05-2025 (Slot 1), in CUET (UG) 2024 on 19-07-2024 (Slot 1), and in CUET (UG) 2023 on 15-06-2023 (Slot 1), on 30-05-2023 (Slot 1) and on 28-05-2023 (Slot 1).