Quiz | Carboxylic Acid Derivatives – Part 2

1

Which proton of an amide is the most acidic?

The proton on the carbonyl

The proton on the nitrogen atom

The proton on the carbon atom in α position

It depends on the conditions (temperature and concentration)

2

What is the first step of the Hofmann rearrangement?

Nucleophile attack of the hydroxide ion on the carbonyl

Acid-activation of the carbonyl

Halogenation of the amide

Deprotonation of the amide and formation of an amidate

3

What are the products of the Hofmann rearrangement?

An amine and CO2

An amide and CO2

An amine and NH3

A carboxylic acid and NH3

4

Which statement is incorrect about alkanenitriles?

The substituent -CN is called cyano

CN is linear and the carbon and the nitrogen atoms are sp-hybridized

Nitrile takes precedence over carboxylic acid in naming

A cycloalkane with a nitrile substituent is called cycloalkanecarbonitriles

5

Which of the following reagents transforms a nitrile into an aldehyde?

LiAlH4

R2AlH

H2, PtO2

RMgBr

6

What is the product of the hydrolysis of nitriles?

An alcohol

An aldehyde

A ketone

A carboxylic acid

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