Question: Column I| Column II ---|--- (A)- Tyrosine| (P)- Essential amino acid (B)- Serin| (Q)- Ceric am...

Question

Column I	Column II
(A)- Tyrosine	(P)- Essential amino acid
(B)- Serin	(Q)- Ceric ammonium nitrate
(C)- Tryptophane	(R)- Neutral $FeC{{l}_{3}}$
(D)- Proline	(S)- Carbylamine test-negative

Select the correct set of the answer.
(A)- A-R, B-Q, C-P, D-S
(B)- A-Q, B-R, C-S, D-P
(C)- A-R, B-P, C-Q, D-S
(D)- A-S, B-Q, C-P, D-R

Answer 1

Solution

Only the primary amine will give the carbylamine test, if the compound is secondary or tertiary then it will test negative. Ceric ammonium nitrate test is used to test the presence of an alcohol group in the compound.

Complete step by step solution:
Tyrosine is a compound of amino acid and its formula is ${{C}_{9}}{{H}_{11}}N{{O}_{3}}$ . It is commonly known as L-tyrosine and it is a non-essential amino acid. The structure of tyrosine is given below:

It doesn’t give the ferric chloride test.
Serin is an $\alpha -\text{amino acid}$ and one end of the serin compound has an alcohol group. The chemical formula of serine is ${{C}_{3}}{{H}_{7}}N{{O}_{3}}$ , and its structure is given below:

Since it has an alcohol group, it will give the ceric ammonium nitrate which is used for the presence of an alcohol group in the compound.
Tryptophan is an $\alpha -\text{amino acid}$ and it is used for the biosynthesis of protein. The chemical formula of tryptophan is ${{C}_{11}}{{H}_{12}}{{N}_{2}}{{O}_{2}}$ and its structure is given below:

It is not naturally found in our body, so it is an essential amino acid and it is especially required for the proper growth of infants. It is present in protein-based or dietary products.
Proline is also an $\alpha -\text{amino acid}$ but like other amino acids it doesn't have a primary amine group, therefore, it is a secondary amine. The chemical formula of proline is ${{C}_{5}}{{H}_{9}}N{{O}_{2}}$ and its structure is given below:

Since it is a secondary amine it will not give a carbylamine test.
So, the correct match will be A-R, B-Q, C-P, D-S.

Therefore, the correct answer is option (A).

Note: All the amino acids in the above options are used for the biosynthesis of protein. Tryptophan is mainly required for the muscles, enzymes, and neurotransmitters. Non-essential amino acids are naturally produced by our body and it doesn’t need to be added in our diet.