| List $I$ (Natural amino acid) | List $II$ (Code) |
| $A$ Glutamic acid | $I$ $Q$ |
| $B$ Glutamine | $II$ $W$ |
| $C$ Tyrosine | $III$ $E$ |
| $D$ Tryptophan | $IV$ $Y$ |
| List $I$ | List $II$ | ||
| $A$ | $\alpha$-Glucose and $\alpha-$Galactose | $I$ | Functional isomers |
| $B$ | $\alpha$-Glucose and $\beta-$-Galactose | $II$ | Homologous |
| $C$ | $\alpha$-Glucose and $\alpha$-Galactose | $III$ | Anomers |
| $D$ | $\alpha$-Glucose and $\alpha$-Galactose | $IV$ | Epimers |
Choose the correct answer from the options given below:
(a) Water solubility is maximum at a $pH$ when concentrations of anions and cations are equal
(b) They give ninhydrin test
(c) On reacting with nitrous acid give off ${N_2}$