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Identify the aldose form the following.

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in Chemistry – Class 12 by (188k points)
Identify the aldose form the following.

(a) Arabinose

(b) Xylulose

(c) Ribulose

(d) Sorbose

I have been asked this question in an online interview.

Asked question is from Biomolecules Carbohydrates in portion Biomolecules of Chemistry – Class 12

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Correct answer is (a) Arabinose

The best I can explain: Arabinose consists of an aldehydic group (CHO) at the end of its chain which has a total of five carbon atoms (including the CHO group), hence it is an aldopentose. Xylulose, ribulose and sorbose are examples of ketoses.

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