Carbohydrates are stored in plants and animals in which of the following forms respectively?

Consider the following statements:
Statement-$I$: Cane sugar is a disaccharide of $\alpha-D$-glucose and $\beta-D$-fructose.
Statement-$II$: Milk sugar is a disaccharide of $\beta-D$-glucose and $\beta-D$-galactose.
The correct answer is:

Which set of terms correctly identifies the carbohydrate shown?
$1$. Pentose $2$. Pentulose $3$. Hexulose $4$. Hexose
$5$. Aldose $6$. Ketose $7$. Pyranose $8$. Furanose

The change in optical rotation with time of freshly prepared solutions of sugar is known as . . . . . . .

Which of the following is the correct structure of $L$-glucose?

Which carbon atoms of $\alpha-D$-glucose and $\beta-D$-fructose respectively form the glycosidic linkage in sucrose?