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Match List I with List II List-I Element detected A. Nitrogen B. Sulphur C. Phosphorus D. Halogen List-II Reagent used/Product formed I. Na2[Fe(CN)5NO] II. AgNO3 III. Fe4[Fe(CN)6]3 IV. (NH4)2MoO4 Choose the correct answer from the options given below.

1. A → III; B → I; C → IV; D → II
2. A → II; B → IV; C → I; D → III
3. A → IV; B → II; C → I; D → III
4. A → II; B → I; C → IV; D → III

Correct answer: A → III; B → I; C → IV; D → II

Solution

The correct option matches each element with its respective reagent or product: Nitrogen is detected using the complex Fe4[Fe(CN)6]3, Sulphur is identified with Na2[Fe(CN)5NO], Phosphorus is detected using (NH4)2MoO4, and Halogens are identified with AgNO3, reflecting their specific chemical interactions.

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