What is the change in optical rotation with time in a freshly prepared sugar solution called?

Which of the following molecules represents the $D$-form?

Glucose has which functional group$(s)$?

Match List-$I$ with List-$II$:

List-$I$ $(\text{Saccharides})$	List-$II$ $(\text{Glycosidic linkages found})$
$(A)$ Sucrose	$(I)$ $\alpha 1-4$
$(B)$ Maltose	$(II)$ $\alpha 1-4$ and $\alpha 1-6$
$(C)$ Lactose	$(III)$ $\alpha 1-\beta 2$
$(D)$ Amylopectin	$(IV)$ $\beta 1-4$

Choose the correct answer from the options given below:

Ribose and $2$-deoxyribose can be differentiated by

Consider the following statements:
Statement $I$: All monosaccharides are reducing sugars.
Statement $II$: Sucrose can reduce ammoniacal silver nitrate solution.
Choose the correct answer from the options given below.