The product, when an alcoholic solution of sucrose is boiled with dilute hydrochloric acid or sulphuric acid is/are
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 50% glucose and 50% fructose
Sucrose is a disaccharide made up of two monosaccharide units: Glucose + Fructose These two units are linked by a glycosidic bond. When sucrose is heated with dilute acids like HCl or H₂SO₄, hydrolysis occurs.
Hydrolysis Reaction: Sucrose + H₂O → Glucose + Fructose
The glycosidic bond breaks and one molecule each of glucose and fructose is formed.
Important Point: For every 1 molecule of sucrose hydrolyzed: 1 molecule of glucose is produced 1 molecule of fructose is produced
So the products are formed in equal molar proportion.
Why 50% each?
Since: 1 sucrose → 1 glucose + 1 fructose There is no preference or unequal formation.
Thus, the mixture contains: 50% glucose 50% fructose This mixture is called invert sugar.