JEE PYQ: Qualitative Analysis Question 1
Question 1 - 2021 (16 Mar Shift 2)
Match List-I with List-II:
List-I (Test/Reagent/Observations): (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
The correct match is:
(1). ((a)-(iii), (b)-(i), (c)-(ii), (d)-(iv))
(2). ((a)-(i), (b)-(iv), (c)-(iii), (d)-(ii))
(3). ((a)-(iii), (b)-(i), (c)-(iv), (d)-(ii))
(4). ((a)-(i), (b)-(ii), (c)-(iv), (d)-(iii))
Show Answer
Answer: (3)
Solution
(a) Lassaigne’s Test → (iii) N, S, P and Halogen; (b) Cu(II) Oxide → (i) Carbon; (c) AgNO₃ → (iv) Halogen specifically; (d) Sodium fusion extract with acetic acid and lead acetate → (ii) Sulphur.
BETA
