Match List-I (compound) with List-II (reagent or chemical test)
|
List-I Compound |
List-II Reagent or Chemical test |
|
(A) Phenols |
(I) Tollen's test |
|
(B) Amines |
(II) Neutral $FeCl_3$ aq. solution |
|
(C) Aldehydes |
(III) lodoform Test |
|
(D) Methyl Ketones |
(IV) Hinsberg's Test |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → (A)-(II), (B)-(IV), (C)-(I), (D)-(III)
|
List-I Compound |
List-II Reagent or Chemical test |
|
(A) Phenols |
(II) Neutral $FeCl_3$ aq. solution |
|
(B) Amines |
(IV) Hinsberg's Test |
|
(C) Aldehydes |
(I) Tollen's test |
|
(D) Methyl Ketones |
(III) lodoform Test |
(A) Phenols $\rightarrow$ (II) Neutral $FeCl_3$ aq. solution
Phenols react with neutral ferric chloride to form a characteristic violet, blue, or green colored complex. This is a standard test to distinguish phenols from alcohols.
(B) Amines $\rightarrow$ (IV) Hinsberg's Test
The Hinsberg test uses benzenesulfonyl chloride ($C_6H_5SO_2Cl$) to distinguish between primary, secondary, and tertiary amines based on the solubility of their sulfonamide derivatives in alkali.
(C) Aldehydes $\rightarrow$ (I) Tollen's test
Aldehydes are easily oxidized and reduce Tollen's reagent (ammoniacal silver nitrate) to metallic silver, forming a silver mirror on the inner walls of the test tube.
(D) Methyl Ketones $\rightarrow$ (III) Iodoform Test
Compounds containing the $CH_3CO-$ group (methyl ketones) react with iodine and sodium hydroxide to produce a yellow precipitate of iodoform ($CHI_3$).