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Calssification and Identification of Aldehydes and Ketones 1.Give a valid structure of a compound that contains...

Calssification and Identification of Aldehydes and Ketones

1.Give a valid structure of a compound that contains the following functional groups:

a. an aldehyde

b. an aromatic aldehyde

c.a ketone

d.a methyl ketone

2. Why can you not distinguish between an aldehyde and a ketone using only the 2,4-dinitrophenylhydrazine reagent?

3. What do you expect to see for a positive Tollens' test? Which class of carbonyl compound gives a positive test result?

4. When would formation of a derivative be a necessary step in this experiment?

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