Section 4: Soil and Water Conservation Engineering
Fluid Mechanics
Subtopic: Ideal and real fluids, properties of fluids
Question Statement:
Match the following reactants in Column I with the most appropriate purpose used in processing in Column II:
| Column I | Column II |
|---|---|
| I. Vitamin E | P. Fumigant for insect killing |
| II. Calcium salts | Q. Reduces shrinkage losses |
| III. Edible waxes | R. Antioxidant with vitamin A in oils |
| IV. Methyl Bromide | S. Firming agent in fruits |
Options:
(A) I-P, II-S, III-Q, IV-R
(B) I-R, II-Q, III-S, IV-P
(C) I-P, II-Q, III-S, IV-R
(D) I-R, II-S, III-Q, IV-P
Official Answer Key:
D
Step-by-Step Solution & Explanation
• Vitamin E is a well-known antioxidant commonly used together with vitamin A in edible oils to prevent oxidative rancidity → I-R.
• Calcium salts (e.g., calcium chloride) are widely used as firming agents in processed fruits (maintaining cell-wall texture) → II-S.
• Edible wax coatings on fruits reduce moisture loss and hence shrinkage during storage → III-Q.
• Methyl bromide is a classical fumigant used for insect/pest control in stored produce → IV-P.
• This gives I-R, II-S, III-Q, IV-P.
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