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Match List-I with List-II List-I Test/Reagents/Observation(s) (a) Lassaigne's Test (b) Cu(II) oxide (c) Silver nitrate (d) The sodium fusion extract gives black precipitate with acetic acid and lead acetate List-II Species detected (i) Carbon (ii) Sulphur (iii) N, S, P, and halogen (iv) Halogen Specifically

1. (1) (a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)
2. (2) (a)-(i), (b)-(iv), (c)-(iii), (d)-(ii)
3. (3) (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
4. (4) (a)-(i), (b)-(ii), (c)-(iv), (d)-(iii)

Correct answer: (4) (a)-(i), (b)-(ii), (c)-(iv), (d)-(iii)

Solution

The correct option accurately matches each test or reagent with the specific species it detects: Lassaigne's Test identifies carbon, Cu(II) oxide indicates the presence of sulfur, silver nitrate is used for detecting halogens, and the black precipitate formed with acetic acid and lead acetate indicates the presence of nitrogen, sulfur, phosphorus, and halogens.

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