The correct match between Item-I and Item-II is:

| Item-I | Item-II |
|---|---|
| A. Ester test | I. Tyr |
| B. Carbylamine test | II. Asp |
| C. Phthalein dye test | III. Ser |
| | IV. Lys |

Choose

Question

The correct match between Item-I and Item-II is:

| Item-I | Item-II |
|---|---|
| A. Ester test | I. Tyr |
| B. Carbylamine test | II. Asp |
| C. Phthalein dye test | III. Ser |
| | IV. Lys |

Choose the correct answer:

Canvas Classes · Accepted Answer

- Esterification test is positive for carboxylic acids. Aspartic acid (Asp) contains an extra carboxyl group in its side chain.
- Carbylamine test is positive strictly for primary amines. Lysine (Lys) contains a primary basic amine group in its extending side chain.
- Phthalein dye test functionally confirms the presence of phenols. Tyrosine (Tyr) uniquely contains a phenolic side chain natively.
Thus, the correct matching is A  II, B  IV, C  I.

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