Question

Sucrose (can Sugaro) is a disaccharide. One molecule of sucrose on hydrolysis gives............ .
(a) 2 molecules of glucose
(b) 2 molecules of glucose + 1 molecule of fructose
(c) 1 molecule of clucose + 1 molecule of fructose
(d) 2 molecules of fructose

Answer 1

(c) Sucrose (cane sugar) is a disaccharide. One molecule of sucrose on hydrolysis given one molecule of glucose and one molecule of fructose.
$\underset{Canesugar}{C_{12}{H}_{22}{O}_{11}}\underset{H+}{\overset{H_{2}O}{\to }}\underset{D(+)glucose}{C_6{H}_{12}{O}_6}+\underset{D(-)fructose}{C_6{H}_{12}{O}_6}$

Note Sucrose is a dextro-rotatory sugar on hydrolysis produces a laevorotatory mixture so, known as invert sugar. Sucrose is a non-reducing sugar while maltose and lactose are reducing sugar.