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What are the components of Benedict’s reagent and Fehling’s reagent? Discuss its principle in the identification of aldehyde and ketones.

Macroscale and Microscale Organic Experiments

7th Edition

ISBN:9781305577190

Author:Kenneth L. Williamson, Katherine M. Masters

Publisher:Kenneth L. Williamson, Katherine M. Masters

Chapter52: Hexaphenylbenzene And Dimethyl Tetraphenylphthalate

Section: Chapter Questions

Problem 2Q

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Question

What are the components of Benedict’s reagent and Fehling’s reagent? Discuss its principle in the identification of aldehyde and ketones.

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

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