| Item $I$ | Item $II$ |
| $A$ Ester test | $P$ Tyr |
| $B$ Carbylamine test | $Q$ Asp |
| $C$ Phthalein dye test | $R$ Ser |
| $S$ Lys |
Assertion $(A) :$ Sucrose is a disaccharide and a non-reducing sugar.
Reason $(R) :$ Sucrose involves glycosidic linkage between $C_{1}$ of $\beta$-glucose and $C_{2}$ of $\alpha$-fructose.
Choose the most appropriate answer from the options given below :
Arginine, Phenylalanine, Aspartic acid, Cysteine, Histidine, Valine, Proline