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Chemistry
How many aldose, ketose and furanose and pyranose units are present in maltose? <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/c-t6yqkfhcdria.png />
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Q. How many aldose, ketose and furanose and pyranose units are present in maltose?
NTA Abhyas
NTA Abhyas 2020
Biomolecules
A
0 aldose, 2 ketose, 0 furanose, 2 pyranose
4%
B
1 aldose, 1 ketose, 1 furanose, 1 pyranose
2%
C
2 aldose, 0 ketose, 0 furanose , 2 pyranose
87%
D
2 aldose, 0 ketose, 1 furanose, 2 pyranose
6%
Solution:
Monomer of maltose is $\alpha $ -D-glucopyranose. It is disaciharide, so 2 aldose in 2 pyranose forms are present in maltose.