Question

List in order of stability. 1. carboxylic acid 2. ketone. 3. aldehyde 4. anhydride. 5. phenol...

List in order of stability. 1. carboxylic acid 2. ketone. 3. aldehyde 4. anhydride. 5. phenol 6. Also what about order of reactivity, is it opposite?

Homework Answers

Answer #1

More stable. Phenol > carboxylic acid > ketone > aldehyde > anhydride.

Phenol, it is usually unaffected and quite stable,

Carboxylic acid it is less stable to phenol because, it undergoes decarboxylation at elevated temperatures.

Ketone, are stable but under certain conditions react to yield other products.

Aldehyde, is unstable because it undergoes air oxidation to yield corresponding carboxylic acids.

Anhydride least stable because it is succeptable to cleavage to yield the carboxylic acid/s.

Yes, the order of reactivity is opposite because always the less stable compounds are more reactive.

The most reactive is anhydride > aldehyde > ketone > carboxylic acid > phenol.

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