Extension - Aldehydes and Ketones in Sugars

These sugars can also exist i/H in the ring form, e.g. glucose jjq 

The carbohydrates also have a lot of OH groups, which means a lot of hydrogen bonding. Note also how many possible optically active centres (asymmetric carbon atoms) there are in the molecules. 

Sugars are sweet, and the chemistry is interesting but sometimes complex. 

What you need to know before you start this unit. 

You should already know about chemical bonding and isomerism. 

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