Match the compounds in List-I with the appropriate observations in List-II and choose the correct option. LIST - I LIST - II (P) (1) Reaction with phenyl diazonium salt gives #ff0 dye. (Q) (2) Reaction with ninhydrin gives purple color and it also reacts with FeCl _3 to give violet color. (R) (3) Re

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Match the compounds in List-I with the appropriate observations in List-II and choose the correct option. LIST - I LIST - II (P) (1) Reaction with phenyl diazonium salt gives #ff0 dye. (Q) (2) Reaction with ninhydrin gives purple color and it also reacts with FeCl _3 to give violet color. (R) (3) Reaction with glucose will give corresponding hydrazone. (S) (4) Lassiagne extract of the compound treated with dilute HCl followed by addition of aqueous FeCl _3 gives blood red color. (5) After complete hydrolysis,it will give ninhydrin test and it DOES NOT give positive phthalein dye test.

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Correct answer: B. P 2 ; Q 5 ; R 1 ; S 3

(P) Gives FeCl _3 test because of presence of phenolic group and ninhydrin test. (Q) Amino acid obtained gives (+) Ninhydrin test but not phthalein dye test. (R) Reaction with phenyl diazonium salt gives yellow dye. (S) Compound will form hydrazone derivative with aldehydic group of glucose.

JEE Advanced Chemistry Question (2025) — Solution

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