Question

Which of the following(s) is/are true regarding the reaction of sucrose to give fructose and glucose?

• A. It can take place in the presence of enzyme sucrase
• B. It results in the formation of a glycosidic bond
• C. It is an inversion reaction
• D. It is a hydrolysis reaction

Answer 1

Answer: (A), (C), (D)

It is a hydrolysis reaction

Hydrolysis of sucrose (in the presence of either dilute acid, invertase or sucrase) results in the cleavage of glycosidic bond to give glucose and fructose.


$\text{Sucrose}\stackrel{\text{Hydrolysis}}{\to }\text{Glucose}+\text{Fructose}\text{Dextrorotatory (+)}\text{Laevorotatory (−)}$
Hydrolysis brings about change in sign of rotation from (+) to (−)​. Hence, it is an inversion reaction and hence, the sucrose is also called ​as invert sugar.​