JEE Main 2026 · 8 Apr · Shift 2 · Chemistry Q69

ChemistrySingle correct+4 / -1Question 69 of 75

The incorrect statement from the following with respect to carbohydrates is :

All monosaccharides are reducing sugars.

The monosaccharide units obtained from hydrolysis of oligosaccharides are always the same.

Starch and cellulose are typical examples of polysaccharides, which are very high molecular weight compounds of more than ten monosaccharide units.

Open chain and cyclic structures co-exist at equilibrium that are responsible for certain properties as in the case of D−(+)−glucose.

Answer and worked solution

Official answer: B

The incorrect statement is that oligosaccharides always give the same monosaccharide. Sucrose, for example, gives glucose and fructose.

(B)

Topics:Carbohydrates

JEE Main 2026 · 8 Apr · Shift 2, Chemistry question 69