Organic Chemistry: Nitrogen Compounds (Edexcel International A Level Chemistry)

Exam Questions

11 mark

Which type of compound cannot be a monomer in the formation of polyamides?

  • amides

  • amino acids

  • diacyl chlorides

  • diamines

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21 mark

What is the name of the compound shown?

q12-paper-5-jan-2021-edexcel-ial-chemistry

  • 1-methylpropanamide

  • 3-methylpropanamide

  • 2-methylbutanamide

  • 3-methylbutanamide

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31 mark

Which sequence shows these compounds in order of decreasing basicity?

  • C6H5NH2 > CH3CH2CH2NH2 > NH3

  • NH3 > CH3CH2CH2NH2 > C6H5NH2

  • CH3CH2CH2NH2 > NH3 > C6H5NH2

  • C6H5NH2 > NH3 > CH3CH2CH2NH2

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4a1 mark

Alanine is an amino acid.

a)
Which structure best represents alanine at high pH?

q13a-paper-5-june-2021-edexcel-ial-chemistry
    4b1 mark
    b)
    Alanine is a crystalline solid at room temperature.

    What are the main forces broken when alanine melts?
    • London forces

    • hydrogen bonds

    • covalent bonds

    • ionic bonds

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    51 mark

    Separate 0.1 mol dm−3 aqueous solutions of ammonia, butylamine and phenylamine were prepared.

    Which of the following sequences shows the solutions in order of increasing pH?

    • butylamine, phenylamine, ammonia

    • ammonia, butylamine, phenylamine

    • phenylamine, ammonia, butylamine

    • ammonia, phenylamine, butylamine

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    61 mark

    Which amine could not be prepared by the reduction of a nitrile?

    q14-paper-5-oct-2021-edexcel-ial-chemistry

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      71 mark

      The repeat unit of a polymer is shown.

      q14-paper-5-jan-2021-edexcel-ial-chemistry

      What is the structure of the monomer?

      q14-2-paper-5-jan-2021-edexcel-ial-chemistry

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        81 mark

        How many different amino acids form the repeat unit of the polymer shown?

        q15-paper-5-oct-2021-edexcel-ial-chemistry

        • 3

        • 4

        • 5

        • 6

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        91 mark

        The repeat unit of a polymer is shown.

        q15-paper-5-jan-2021-edexcel-ial-chemistry

        This polymer could be

        • both a polypeptide and a polyamide

        • neither a polypeptide nor a polyamide

        • a polypeptide but not a polyamide

        • a polyamide but not a polypeptide

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        11 mark

        Which reagent reacts at room temperature with methylamine, CH3NH2, to form the compound N-methylethanamide?

        • CH3COCH3

        • CH3COOH

        • CH3COOCH3

        • CH3COCl

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