A LevelChemistryAQAExam Questions7. Advanced Organic Chemistry (A Level only)7.5 Amines (A Level only)

Amines (A Level only) (AQA A Level Chemistry)

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7.5 Amines (A Level only)

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11 mark

What is the correct name of the following amine? 

7-5-e-q1-aqa-al-chemistry

  • Triethylamine

  • Trimethylamine

  • Diethylamine

  • N-methylethylamine

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21 mark

Which of the following amines is the strongest base?

  • Methylamine

  • Phenylamine

  • Ammonia

  • Dimethylamine

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31 mark

What are the correct reagents and conditions for the formation of propylamine, CH3CH2CH2NH2?

  • Excess 1-bromopropane and ammonia

  • 1-bromopropane and excess ammonia in a sealed tube

  • 2-bromopropane and excess ammonia in a sealed tube 

  • Excess 2-bromopropane and ammonia

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41 mark

What is the name of the following quaternary ammonium salt?7-5-e-q4-mcq-al-chemistry

  • Tetramethylammonium bromide

  • Methylammonium bromide 

  • Tetraethylammonium bromide

  • Ethylammonium bromide

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51 mark

Which two reactants are required for the formation of N-ethyl butanamide?

  • 1-chlorobutane and ammonia 

  • Ethanoic anhydride and butylamine

  • Ethanoyl chloride and butylamine

  • Butanoyl chloride and ethylamine 

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11 mark

The name of the following amine is7-5-m-q1-aqa-al-chemistry-mcq

  • N-propylmethylamine 

  • Butylamine

  • 2-aminobutane 

  • N-methylpropylamine 

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21 mark

When a large excess of ammonia reacts with chloroethane, which of the following statements is true?

  • The electrophilic substitution occurs 

  • The formation of the quaternary ammonium salt is favoured

  • One mole of ammonia reacts with one mole of chloroethane to produce a primary amine 

  • The formation of a primary amine is favoured

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31 mark

Which of the following explains why propylamine is a stronger base than phenylamine?

  • Electron density is pulled away from the nitrogen atom in propylamine 

  • Alkyl groups are electron withdrawing groups

  • The lone pair on the nitrogen atom in phenylamine becomes delocalised into the benzene ring

  • The positive inductive effect is greater in phenylamine than propylamine

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41 mark

Which of the following is not a use for a quaternary ammonium salt?

  • Bactericide

  • Azo dye 

  • Detergent

  • Hair conditioner

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51 mark

When propylamine is produced, which of the following statements is not correct?

  • LiAlH4 can be used to reduce propanenitrile 

  • The nitrile group acts as a nucleophile when reacted with 1-chloropropane

  • 1-chloropropane is heated under reflux with potassium cyanide and ethanol

  • Ammonia reacts with 1-chloropropane in a sealed tube

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11 mark

The reaction between a haloalkane and an amine produces a mixture of products.

 

Which of the following combinations would produce a solid product of [(C2H5)3N(CH3)]+Br -?

  • Bromomethane and ethylamine 

  • Bromoethane and ammonia 

  • Bromoethane and methylamine

  • Bromoethane and ethylamine

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21 mark

Which of the following statements about amides is not correct?

  • N-substituted amides have lower melting points and boiling points than unsubstituted amides because fewer hydrogen bonds can form

  • All amides can form hydrogen bonds with water 

  • Low molecular weight amides are always water-soluble

  • The melting points of low molecular weight amides are low for their size

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31 mark

Which of the following compounds would be produced between the reaction of propylamine and ethanoic anhydride?

  • HCl

  • (CH3CH2CH2)2NH

  • CH3COOH

  • CH3COO- NH3+CH2CH2CH3

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41 mark

The formula of an organic molecule is shown below.

7-5-h-q4-aqa-al-chemistry-mcq

Which of the following statements is correct?

  • The presence of the chlorine atom increases the base strength of the molecule 

  • The molecule can form hydrogen bonds 

  • The molecule can act as strong base

  • The presence of the chlorine atom decrease the base strength of the molecule

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51 mark

What is the IUPAC name of the amine shown below?7-5-h-q5-aqa-al-chemistry-mcq

  • Dimethyldiethyl ammonium chloride 

  • Diethylmethyl ammonium chloride 

  • Diethyldimethyl ammonium chloride 

  • Methylethyl ammonium chloride 

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