Question

Identify the quantity of carbohydrate units formed after hydrolysis of n mole lactose.

• A. \(2n\) Glucose
• B. \(n\) Glucose \(+n\) Galactose
• C. 3n Glucose
• D. \(n\) Glucose \(+n\) fructose

Hint:

Lactose is a disaccharide of galactose and glucose.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept
Lactose is milk sugar, a disaccharide made of one galactose unit and one glucose unit joined by a glycosidic bond.

Step 2: Hydrolysis
\(\text{Lactose}+\text{H}_2\text{O}\rightarrow\text{Glucose}+\text{Galactose}\).

Step 3: For n mole
\(n\) mole of lactose gives \(n\) mole of glucose and \(n\) mole of galactose.

Final Answer:
Hydrolysis of n mole of lactose gives n mole glucose and n mole galactose. \[ \boxed{\text{(B) }n\text{ Glucose}+n\text{ Galactose}} \]