Lesson 18B.1

18B.1 Amines: identification, basicity and reactions Quiz: Pearson Edexcel Chemistry, Unit 18

20 questions

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Lesson 18B.1, Amines: identification, basicity and reactions: 20 multiple choice questions for the Pearson Edexcel Chemistry (9CH0), Unit 18: Organic Chemistry III, written with Revision Ninja.

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The 20 questions

  1. How many alkyl or aryl groups are attached to nitrogen in a primary amine?

    • One
    • Three
    • Four
    • Two
  2. What feature on nitrogen allows primary aliphatic amines to act as bases?

    • Pi cloud
    • Lone pair
    • Double bond
    • Positive charge
  3. Which ion is released when butylamine reacts with water to form an alkaline solution?

    • Hydronium ion
    • Ammonium ion
    • Hydroxide ion
    • Chloride ion
  4. Which metal ion reacts with primary amines to form a deep blue complex?

    • Copper(II)
    • Iron(III)
    • Nickel(II)
    • Cobalt(II)
  5. Which group is directly attached to the carbonyl carbon in an amide?

    • Hydrogen atom
    • Nitrogen atom
    • Oxygen atom
    • Chlorine atom
  6. Which two functional groups are present in all amino acids?

    • Amide and carboxyl
    • Amine and carbonyl
    • Amine and hydroxyl
    • Amine and carboxyl
  7. What organic product is formed from the reaction of butylamine with ethanoyl chloride?

    • Butanamide
    • N-ethylethylamide
    • Butyl ethanoate
    • N-butylethanamide
  8. Which compound is the strongest base among ammonia, butylamine, and phenylamine?

    • Butylamine
    • All are equal
    • Phenylamine
    • Ammonia
  9. Why is phenylamine a weaker base than ammonia in aqueous solution?

    • Lone pair delocalisation
    • Steric hindrance
    • Inductive donation
    • Greater molar mass
  10. What is the main drawback of preparing a primary amine from a haloalkane and ammonia?

    • Further substitution occurs
    • Low reaction rate
    • Hydrolysis occurs
    • Reversible reaction
  11. Which reagent reduces a nitrile to a primary amine?

    • LiAlH4 in ether
    • Acidified K2Cr2O7
    • Concentrated H2SO4
    • NaBH4 in water
  12. What is the molecular formula of N-butylethanamide?

    • C6H15N
    • C6H11O
    • C4H11N
    • C6H13NO
  13. Which of these is a secondary amine?

    • Trimethylamine, (CH3)3N
    • Ethanamide, CH3CONH2
    • Propan-1-amine, CH3CH2CH2NH2
    • N-methylethanamine, CH3NHCH2CH3
  14. Which compound is a primary aromatic amine?

    • Diethylamine, (C2H5)2NH
    • Trimethylamine, (CH3)3N
    • N-methylphenylamine, C6H5NHCH3
    • Phenylamine, C6H5NH2
  15. Which ion is produced when ammonia acts as a base in water?

    • Hydronium ion
    • Hydrogen ion
    • Nitride ion
    • Hydroxide ion
  16. Which effect explains why alkylamines are stronger bases than ammonia?

    • Positive inductive effect
    • Negative inductive effect
    • Mesomeric effect
    • Steric hindrance
  17. Which of these compounds is the strongest base?

    • Phenylamine
    • Ethanoic acid
    • Ammonia
    • Butylamine
  18. What is the role of excess amine when reacting with an acyl chloride?

    • Oxidise the amine
    • Neutralise released HCl
    • Reduce carbonyl group
    • Act as catalyst
  19. Which condition minimises further substitution when preparing a primary amine from a halogenoalkane?

    • Excess ethanolic ammonia
    • Concentrated sulphuric acid
    • Excess halogenoalkane
    • Dilute aqueous ammonia
  20. What type of reaction mechanism forms an amide from an acyl chloride and an amine?

    • Nucleophilic addition-elimination
    • Free radical substitution
    • Nucleophilic substitution
    • Electrophilic addition

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