Question

Which of the following sugars cannot be split further into simpler sugars by hydrolysis?

• A. Glucose
• B. Sucrose
• C. Lactose
• D. Maltose

Answer 1

The correct option is A Glucose

The monosaccharide is the simplest form of carbohydrate which is composed of carbon, hydrogen, and oxygen. The basic formula of the monosaccharide is C${}_n$H${}_{2n}$O${}_n$. These are considered as the simplest form of sugar. It cannot be hydrolyzed into any further simpler compounds by addition of water.

Glucose is a monosaccharide it cannot be hydrolyzed into simpler compounds. The molecular formula is C${}_6$H${}_{12}$O${}_6$.

Sucrose is a disaccharide formed by the glycosidic linkage between glucose and fructose. It can be broken into glucose and fructose by enzyme sucrase.

Lactose is a disaccharide formed by the glycosidic linkage between glucose and galactose. It can be broken into galactose and glucose by the enzyme lactase.

Maltose is a disaccharide formed by the glycosidic linkage between glucose monomers. It can be hydrolyzed to glucose by enzyme maltase.

So, the correct answer is option A.