CUET Preparation Today
Match List-I (compound) with List-II (reagent or chemical test)
Choose the correct answer from the options given below: |
(A)-(I), (B)-(II), (C)-(III), (D)-(IV) (A)-(I), (B)-(II), (C)-(IV), (D)-(III) (A)-(II), (B)-(I), (C)-(III), (D)-(IV) (A)-(II), (B)-(IV), (C)-(I), (D)-(III) |
(A)-(II), (B)-(IV), (C)-(I), (D)-(III) |
The correct answer is Option (4) → (A)-(II), (B)-(IV), (C)-(I), (D)-(III)
(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 ($CHI_3$). |
