CAIE A-Level Chemistry 29.1 Formulae, Functional Groups and Nomenclature

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

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 contain 29.1.2—Interpret/use the general, structural,29.1.3—Systematic nomenclature of simple aliphatic 29.1.4—Systematic nomenclature of simple aromatic

[Maximum number: 1]

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

1,3-dimethylbenzene

Figure for Question 29.1 Formulas, functional groups and nomenclature question 1 — CAIE A-Level Chemistry A2

Draw the structure of L.

[Maximum number: 1]

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

Fig. 7.2

Give the systematic name for ester W.

[Maximum number: 1]

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

Fig. 8.1 shows some reactions of T.

Fig. 8.1

Give the systematic name for T.

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Covered syllabus points

29.1 Formulas, functional groups and nomenclature question 1

29.1 Formulas, functional groups and nomenclature question 2

29.1 Formulas, functional groups and nomenclature question 3