Question

In the following haworth structure of D- fructose, identify the isomer? HOCH2 CH2OH O H HO H OH OH H A. alpha isomer B. A ketotetrose C. beta isomer. D. ketopentose E. beta - alpha isomer

          In the following haworth structure of D- fructose, identify the isomer?

HOCH2 CH2OH
O
H HO
H OH OH H

A. alpha isomer
B. A ketotetrose
C. beta isomer.
D. ketopentose
E. beta - alpha isomer

Added by Jackie N.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Adi S

06/05/2023

Step 1

Since it has a ketone group (C=O) and not an aldehyde group (CHO), it is a ketose. Now, let's count the number of carbon atoms. There are 6 carbon atoms in the structure, so it is a hexose. Therefore, the sugar is a ketohexose. Now, let's determine the Show more…

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