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| स्तंभ-$I$ | स्तंभ-$II$ |
|---|---|
| $1$. < em>Aspergillus niger | $(A)$ एसिटिक अम्ल |
| $2$. < em>Acetobacter aceti | $(B)$ ब्यूटिरिक अम्ल |
| $3$. < em>Clostridium butyricum | $(C)$ साइट्रिक अम्ल |
| $4$. < em>Lactobacillus | $(D)$ लैक्टिक अम्ल |
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