Question

Which of the following compounds will not show mutarotation?
(A) Methyl-a-D-glucopyranoside
(B) 4-0-a-D-glucopyranosyl-D-glucopyranose
(C) B-D-galactopyranose
(D) a-D-glucopyranosyl-B-D-fructofuranoside​

Answer 1

hi mater

here is yr answer

option a - Methyl - a- D - glucopyranoside

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Answer 2

Answer:

Explanation:

Mutarotation:

When glucose dissolves in water, the equilibrium between its α and β anomers changes, causing a change in the optical rotation of the solution. The α and βevolve progressively, interconverting until a state of equilibrium is reached because of the mechanism of ring-chain tautomerism. For instance, whenα- D glucose or β- D glucose is dissolved in water, the rotation of the solution gradually changes to an equilibrium value of +52.7 °, which is comparable to the 36 percent alpha and 64 percent beta forms.

the compound which will not show mutarotation is Methyl-a-D-glucopyranoside.

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