Which of the following saccharides is present in milk?

Glucose does not react with

Under what conditions is glucose converted to gluconic acid and saccharic acid?

Given below are two statements:
Statement $I:$ Fructose does not contain an aldehydic group but still reduces Tollen's reagent.
Statement $II:$ In the presence of base,fructose undergoes rearrangement to give glucose.
In the light of the above statements,choose the correct answer from the options given below:

Which of the following structures represents $\alpha-D$-glucose?

Lactose is a disaccharide of