Match List-I with List-II and select the correct answer using the code given below the Lists :
| List-I (Compound) |
List-II (Use) |
|---|---|
| A. Boric acid | 1. Antiseptic |
| B. Citric acid | 2. Food preservative |
| C. Magnesium hydroxide | 3. Antacid |
| D. Acetic acid | 4. Pickle |
Code :
A-1, B-2, C-3, D-4
A-1, B-3, C-2, D-4
A-4, B-3, C-2, D-1
A-4, B-2, C-3, D-1
Answer is Wrong!
Answer is Right!
This question was previously asked in
UPSC CDS-1 – 2020
– A. Boric acid: Known for its mild antiseptic properties, often used in eyewashes and topical applications.
– B. Citric acid: A common food additive used as a preservative due to its acidic nature and antioxidant properties.
– C. Magnesium hydroxide: A component of antacids (like Milk of Magnesia) used to neutralize excess stomach acid.
– D. Acetic acid: The main component of vinegar, commonly used in pickling as both a flavouring agent and preservative.
Thus, the correct mapping is A-1, B-2, C-3, D-4.
– Citric acid functions as a food preservative.
– Magnesium hydroxide is used as an antacid.
– Acetic acid is used in pickles.