Which one of the following sets of monosaccharides forms sucrose ?

Options

A. `alpha`-D-Galactopyranose and `alpha`-D-Glucopyranose
B. `alpha`-D-Glucopyranose and `beta`-D-fructofuranose
C. `beta`-D-Galactopyranose and `alpha`-D-fructofuranose
D. `alpha`-D-Glucopyranose and `beta`-D-fructopyranose

Answer

B

Explanation

Sucrose is disaccharide of `alpha`-D-glucopyranose and `beta`-D-fructofuranose