Chemistry - Biomolecules Question with Solution | TestHub

On hydrolysis stachyrose gives four, sucrose gives two raffinose gives three and ribose gives no molecule, of monosaccharides. Thus, only raffinose is a trisaccharide.

$\underset{\text{Raffinose}}{{\text{C}}_{\text{18}}{\text{H}}_{\text{32}}{\text{O}}_{\text{16}}}+{\text{H}}_{\text{2}}\text{O}\to {\text{3C}}_{\text{6}}{\text{H}}_{\text{12}}{\text{O}}_{\text{6}}$