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CAIE A-Level Chemistry A2 29.1 Formulas Functional Groups and Nomenclature Questions

Practise interpreting organic formulae and assigning systematic names to syllabus aliphatic and aromatic structures.

Syllabus
2028–2030
Course
Chemistry 9701
Level
A2

Exam points

  • move accurately between general, structural, displayed and skeletal formulae for syllabus organic classes
  • select the principal functional group, number the parent structure and assign substituent locants
  • name or draw simple aliphatic, cyclic and single-ring aromatic compounds within syllabus limits

Covered syllabus points

29.1.1—Compounds in the table on page 47 contain29.1.2—Interpret/use the general, structural,29.1.3—Systematic nomenclature of simple aliphatic29.1.4—Systematic nomenclature of simple aromatic

Question 1

[Maximum number: 1]

Compound M is made from 1,3-dimethylbenzene in a two-step synthesis.

1,3-dimethylbenzene

Figure for Question 1 — CAIE A-Level Chemistry A2

Draw the structure of L.

Question 2

[Maximum number: 1]

Ethanol reacts with propanoyl chloride, C2H5COCl\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{COCl}, to form ester W.

Fig. 7.2

Fig. 7.2

Give the systematic name for ester W.

Question 3

[Maximum number: 1]

Compound T,C5H9O2Cl\mathbf{T}, \mathrm{C}_{5} \mathrm{H}_{9} \mathrm{O}_{2} \mathrm{Cl}, is a useful synthetic intermediate.

Fig. 8.1 shows some reactions of T.

Fig. 8.1

Fig. 8.1

Give the systematic name for T.

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