NTA Abhyas JEE Main2020ChemistryBiomoleculesPractice
If number of aldose, ketose, furanose and pyranose units present in maltose are p, q, r, s respectively. Find the value of p + q + r + s
Correct answer
4
Step-by-step solution
Monomer of maltose is α -D-glucopyranose. It is disaciharide, so 2 aldose and 2 pyranose forms are present in maltose. Hence, p = 2, q = 0, r = 0 and s = 2 So, sum of p + q + r + s = 2 + 0 + 0 + 2 = 4.