Which form of glucose is obtained by crystallisation from a hot and saturated aqueous solution at 371 K?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → β-form
NCERT (2026-27 edition):
10.1.2.1 Glucose – “3. Glucose is found to exist in two different crystalline forms which are named as α and β. The α-form of glucose (m.p. 419 K) is obtained by crystallisation from concentrated solution of glucose at 303 K while the β-form (m.p. 423 K) is obtained by crystallisation from hot and saturated aqueous solution at 371 K.”