JEE Main Chemistry question

In aqueous solution glucose remains as

(A)Only in open chain form
(B)Only in pyranose form
(C)Only in furanose form
(D)In all three forms in equilibriumCorrect

Answer: (D)

Solution

In water, glucose exists as a dynamic equilibrium of the open-chain aldehyde form (about 0.02%), the α- and β-pyranose forms (together about 99%), and a small amount of furanose forms,

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Question ID VK-150567