Identify the non-reducing sugar from the following.

Glucose $\xrightarrow{Br_2 \, \text{water}} (A)$. Product $(A)$ will be

The number of $-OH$ groups in open chain and ring structures of $D$-glucose are respectively:

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

Hydrolysis of which disaccharide in the presence of the enzyme maltase gives glucose only?

$A$ polysaccharide '$X$' on boiling with dil $H_2SO_4$ at $393 \ K$ under $2-3 \ atm$ pressure yields '$Y$'. '$Y$' on treatment with bromine water gives gluconic acid. '$X$' contains $\beta-$glycosidic linkages only. Compound '$X$' is ..... .