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Match List –I with List-II
          List-I                                                 List-II
          (a) Lassaigne’s test                            (i) Carbon
          (b) Cu(II) oxide                                    (ii) Sulphur
          (c) Silver nitrate                                  (iii) N,S,P and halogen
          (d) The sodium fusion extract             (iv) Halogen specifically
          gives black precipitate with acetic acid and lead acetate
          The correct match is:

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$a \to i; b \to iv; c \to iii, d \to ii$

$a \to iii; b \to i; c \to iv, d \to ii$

$a \to i; b \to ii; c \to iv, d \to iii$

$a \to iii; b \to i; c \to ii, d \to iv$

answer is A.

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Detailed Solution

a) Lassaigne’s test is used to identify the elements N,S,P and halogens

b) $C u (I I) O$ is used to identify ‘Carbon’

c) $A g N O_{3}$ is used to identify halogen specifically

d) $2 N a^{+} + S^{- 2} \to N a_{2} S \overset{C H_{3} C O O H}{\to} H_{2} S \overset{P b {(C H_{3} C O O)}_{2}}{\to} P b s ↓ (B l a c k)$

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Match List –I with List-II List-I List-II (a) Lassaigne’s test (i) Carbon (b) Cu(II) oxide (ii) Sulphur (c) Silver nitrate (iii) N,S,P and halogen (d) The sodium fusion extract (iv) Halogen specifically gives black precipitate with acetic acid and lead acetate The correct match is: