Match List - I with List - II.
| List – I | List – II |
|---|---|
| (A) Aspergillus niger | (I) Butyric acid |
| (B) Saccharomyces cerevisiae | (II) Citric acid |
| (C) Clostridium butylicum | (III) Lactic acid |
| (D) Lactobacillus | (IV) Ethanol |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → (A)-(II), (B)-(IV), (C)-(I), (D)-(III)
(A) Aspergillus niger — this matches (II) Citric acid.
(B) Saccharomyces cerevisiae — this matches (IV) Ethanol.
(C) Clostridium butylicum — this matches (I) Butyric acid.
(D) Lactobacillus — this matches (III) Lactic acid.
Note: A similar question was also asked in CUET (UG) 2026 on 19-05-2026 (Slot 1), in CUET (UG) 2025 on 13-05-2025 (Slot 1), and in CUET (UG) 2023 on 23-06-2023 (Slot 3) and on 15-06-2023 (Slot 1).
NCERT Extract:
Chemicals, Enzymes and Other Bioactive Molecules – “… 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.”
Chemicals, Enzymes and Other Bioactive Molecules – “… Yeast (Saccharomyces cerevisiae) is used for commercial production of ethanol.”