MCQ
$\,$


- A

- B

- ✓

- D








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$(a)\,\,q + w$ $ (b)\,\,q$
$(c)\,\,w$ $ (d)\,\,H -TS$

(image)
($A$) $R$ is steam volatile
($B$) $Q$ gives dark violet coloration with $1 \%$ aqueous $FeCl_3$ solution
($C$) $S$ gives yellow precipitate with $2, 4$-dinitrophenylhydrazine
($D$) $S$ gives dark violet coloration with $1 \%$ aqueous $FeCl_3$ solution