Question

Match the method/value used for measuring lipid characteristics in Column I with the corresponding properties indicated by them, in Column II.

• A. P-3, Q-1, R-4, S-2
• B. P-1, Q-3, R-4, S-2
• C. P-3, Q-1, R-2, S-4
• D. P-3, Q-4, R-1, S-2

Hint:

Use the memory trick: - Iodine = Unsaturation, - Peroxide = Primary oxidation, - TBA = Secondary oxidation, - Rancimat = Stability (Induction).

Answer 1

The Correct Option is A

Step 1: Recall the principles of each test.
- Thiobarbituric acid (TBA) test: Measures malondialdehyde (secondary oxidation) → Carbonyl content.
- Rancimat method: Accelerated oxidation → Induction time.
- Peroxide value: Primary oxidation product → Hydroperoxide content.
- Iodine value: Measures double bonds → Degree of unsaturation.

Step 2: Final Matching.
- P → 3
- Q → 1
- R → 4
- S → 2 Final Answer: \[ \boxed{\text{(A) P-3, Q-1, R-4, S-2}} \]