Match List I with List II:

Choose the correct answer from the options given below:

A. Br2 water test  

This is a test for unsaturation (alkenes or alkynes). The reddish-orange colour of bromine water disappears (decolorizes) as the bromine reacts across the double or triple bond to form a colourless di-bromoalkane.

B. Ceric ammonium nitrate (CAN) 

This test is used to detect the Alcoholic group . When CAN is added to an alcohol, it forms a complex through an alkoxy exchange, resulting in a distinct pink or red colour.

C. Ferric chloride test 

This is a specific test for Phenols or enols. Neutral ferric chloride reacts with phenols to form complex coordination compounds that exhibit characteristic colours ranging from violet and blue to green or red, depending on the specific phenol present.

D. 2, 4 - DNP (Brady’s Reagent) test 

This test identifies the Carbonyl group (>C=O) found in aldehydes and ketones. The reagent reacts with the carbonyl carbon to form a hydrazone, which is a poorly soluble solid appearing as a yellow, orange, or red precipitate.