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18 Questions

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Oxidation of Aldehydes and Ketones

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Questions and Answers

What is the result of oxidizing a primary alcohol with KMnO4, K2Cr2O7, or Na2Cr2O7?

Formation of an aldehyde

Formation of an ester

Formation of a ketone

Formation of a carboxylic acid (correct)

What is the functional group responsible for the characteristic chemical behavior of carboxylic acids?

Carboxyl group (-COOH) (correct)

Carbonyl group (C=O)

Hydroxyl group (-OH)

Amino group (-NH2)

What is the product of the reduction of a carboxylic acid?

A primary alcohol (correct)

An aldehyde

A ketone

An ester

What is the reaction in which alpha-hydrogen atoms are replaced by Cl or Br?

Hell-Volhard-Zelinsky reaction Signup and view all the answers

What is the IUPAC naming convention for aldehydes?

Replace the –e of the corresponding alkane by –al Signup and view all the answers

What are the four important classes of acid derivatives formed by replacing the hydroxyl group?

Esters, amides, anhydrides, and acid chlorides Signup and view all the answers

What is the primary difference between the oxidation of aldehydes and ketones?

The hydrogen atom attached to the carbonyl carbon is abstracted during oxidation of aldehydes. Signup and view all the answers

What is the product of the reduction of aldehydes to alcohols?

Primary alcohols Signup and view all the answers

What is the physical state of aldehydes at ordinary conditions?

Aldehydes can be either solid, liquid or gas depending on molecular mass Signup and view all the answers

What is the condition for further halogenation to occur in the Hell-Volhard-Zelinsky reaction?

After the full replacement of alpha-hydrogen atoms Signup and view all the answers

What is the reaction that involves the formation of haloforms, such as chloroform, bromoform, and iodoform?

Haloform reaction Signup and view all the answers

What happens to the solubility of aldehydes as the number of carbon atoms increases?

Solubility decreases Signup and view all the answers

What is the characteristic of aldehydes with lower molecular mass?

Sharp odor Signup and view all the answers

What is the product of the reduction of ketones to alcohols?

Secondary alcohols Signup and view all the answers

What is the common oxidation reaction of aldehydes?

Oxidation to carboxylic acids Signup and view all the answers

What is the result of the oxidation of ketones?

A mixture of carboxylic acids is formed Signup and view all the answers

What is the reaction that involves the reduction of aldehydes and ketones to hydrocarbons?

Clemmensen reduction Signup and view all the answers

Why must aldehydes be protected from air?

To prevent oxidation to carboxylic acids Signup and view all the answers