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 WHY SUCROSE DOES NOT GIVE MUTA ROTATION ?

Asked by Swankitaraj(student), on 26/7/12

Answers

EXPERT ANSWER

Mutarotation is defined as the spontaneous change in the specific rotation of the optically active compound. This can occur only if there is a free OH group present on anomeric carbon atom (i.e. there is a free aldehydic or ketonic group present). 

As sucrose is a non reducing sugar (because the OH groups at the both the anomeric carbon atoms are involved in a bond)

it will ot undergo mutarotation. Also it will not give Benedict's test, Fehling's test and tollen's test, which is given readily by most of the aldehydes.

Posted by Kirti Gogia(MeritNation Expert), on 27/7/12

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