Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Organic: Biomolecules

Question:

Which form of glucose is obtained by crystallization from hot and saturated aqueous solution at 371K?

Options:

L-form 

D-form

β-form

α-form

Correct Answer:

β-form

Explanation:

When a saturated aqueous solution is heated to about 100°C and then crystallized, the β-form of glucose is obtained. On the other hand, a concentrated solution at room temperature on crystallization gives α-form.