Nitrogen Containing CompoundMedium

Question

Match the List-I with List-II

List-I Amino acid List-II Positive reaction/Test for functional group present in side chain of amino acid
A. Glutamine I. Hinsberg's test
B. Lysine II. Neutral ${FeCl}_{3}$ test
C. Tyrosine III. Ceric ammonium nitrate test
D. Serine IV. Hoffman bromamide degradation

Choose the correct answer from the options given below :

Options

A.A-IV, B-II, C-I, D-III
B.A-IV, B-I, C-II, D-III
C.A-III, B-II, C-I, D-IV
D.A-IV, B-I, C-III, D-II

Solution

Sol. [Key Concept: Identify each side-chain group: glutamine (amide)$\rightarrow$Hoffmann bromamide, lysine (primary amine)$\rightarrow$Hinsberg, tyrosine (phenolic)$\rightarrow$neutral FeCl$3$, serine (alcohol)$\rightarrow$ceric ammonium nitrate.]

Glutamine

has amide functional group inside chain. So it gives Hoffmann bromamide reaction.

Lysine

has $1^{\circ}$ amine group. So it gives +ve Hinsberg test.

Tyrosine

has phenolic OH. So it gives +ve test with neutral ${FeCl}_{3}$.

Serine

has alcohlic -OH group. So it gives +ve test with cerric ammonium nitrate.

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