Which of the following sugar molecules are commonly found in disaccharides?

Draw the structures (using chair conformations of pyranoses) of the following disaccharides.

(a) 4-O-(α-D-glucopyranosyl)-D-galactopyranose

(b) α-D-fructofuranosyl-β-D-mannopyranoside

(c) 6-O-(β-D-galactopyranosyl)-D-glucopyranose

Draw the structures of the individual mutarotating α and β anomers of maltose.

Does lactose mutarotate? Is it a reducing sugar? Explain. Draw the two anomeric forms of lactose