JEE PYQ: Biomolecules And Polymers Question 61
Question 61 - 2019 (11 Jan Shift 2)
The correct match between Item I and Item II is:
| Item I | Item II |
|---|---|
| (A) Ester test | (P) Tyr |
| (B) Carbylamine test | (Q) Asp |
| (C) Phthalein dye test | (R) Ser |
| (S) Lys |
(1) (A) $\to$ (Q, R); (B) $\to$ (S); (C) $\to$ (P)
(2) (A) $\to$ (R); (B) $\to$ (Q); (C) $\to$ (P)
(3) (A) $\to$ (R); (B) $\to$ (S); (C) $\to$ (Q)
(4) (A) $\to$ (Q); (B) $\to$ (S); (C) $\to$ (R)
Show Answer
Answer: (1)
Solution
(P) Tyrosine: Tyr $(-\text{CH}_2-\text{C}_6\text{H}_4-\text{OH})$ Phthalein dye test (C). (Q) Aspartic acid: Asp $(-\text{CH}_2\text{COOH})$ Ester test (A). (R) Serine: Ser $(-\text{CH}_2\text{OH})$ Ester test (A). (S) Lysine: Lys $(-(\text{CH}_2)_4-\text{NH}_2)$ Carbylamine test (B).