Carbohydrates which on hydrolysis give $2-10$ molecules of monosaccharide are called .

In non-reducing disaccharide, the reducing group of monosaccharides i.e. aldehydic or ketonic group are bounded.

Which of the following disaccharide is a non-reducing sugar?

 The correct observation in the following reaction is:

$\mathrm{Sucrose}\underset{}{\overset{\mathrm{Glycosidic} \mathrm{bond} \mathrm{Cleavage} \left(\mathrm{Hydrolysis}\right)}{\to }}\mathrm{A}+\mathrm{B}\underset{}{\overset{\mathrm{Seliwanoff} \mathrm{Reagent}}{\to }}?$

The correct statement about the following disaccharide is-