Question

Enumerate the reactions of D-glucose which cannot obe explained by its open chain structure.

Answer 1

1. Glucose does not give 2,4-DNP test, Schi’s test and it does not form the hydrogen sulphite addition product with NaHSO₃ . 

2. The pentaacetate of glucose does not react with hydroxylamine. 

3. Glucose exists in two different crystalline forms such as α – form and β -form.