$D$-glucose upon treatment with bromine-water gives:

The disaccharide present in milk is

Which of the following carbohydrates is an essential component of the plant cell wall?

Consider the following:
Statement-$I$ : Lactose is composed of $\alpha-D$-glucose and $\beta-D$-galactose.
Statement-$II$ : Lactose is a reducing sugar.
The correct answer is

Which of the following pair of monosaccharides will form the same osazone when reacted with phenyl hydrazine?

Sucrose is