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Aldehydes

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Questions and Answers

Which functional group distinguishes carboxylic acids from aldehydes and ketones?

Ester group

Phenyl group

Alkyl group

Carboxyl group (correct)

Which functional group is present in aldehydes, ketones, and carboxylic acids?

Amino group

Carbonyl group (correct)

Hydroxyl group

Alkene group

How do aldehydes, ketones, and carboxylic acids differ in terms of reactivity?

Aldehydes are more reactive than ketones and carboxylic acids due to the presence of a hydrogen atom on the carbonyl group. Carboxylic acids are more acidic compared to aldehydes and ketones.

What is the general structure of aldehydes, ketones, and carboxylic acids?

The general structure of aldehydes is RCHO, ketones is RCOR', and carboxylic acids is RCOOH. Signup and view all the answers

Which compound can be formed by the oxidation of a primary alcohol?

Aldehyde (C) Signup and view all the answers

What are the common methods for synthesizing aldehydes, ketones, and carboxylic acids?

Aldehydes can be synthesized by the oxidation of primary alcohols or the ozonolysis of alkenes. Ketones can be synthesized by the oxidation of secondary alcohols or the Friedel-Crafts acylation of aromatic compounds. Carboxylic acids can be synthesized by the oxidation of primary alcohols, aldehydes, or the hydrolysis of nitriles. Signup and view all the answers