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CAIE IGCSE Chemistry 11. Organic chemistry Question Bank

Practise organic chemistry through formulae, functional groups, homologous series, naming, fuels, reactions and polymers.

Syllabus
2026–2028
Course
Chemistry 0620

Covered syllabus points

11.1 Formulae, functional groups and terminology11.2 Naming organic compounds11.3 Fuels11.4 Alkanes11.5 Alkenes11.6 Alcohols11.7 Carboxylic acids11.8 Polymers

11. Organic chemistry question 1

[Maximum number: 6]

Fluorine is a Group VII element. Fluorine forms compounds with metals and non-metals.

Question (a)

(a)

Tetrafluoroethene is an unsaturated compound with the formula C2 F4\mathrm{C}_{2} \mathrm{~F}_{4}. Tetrafluoroethene is the monomer used to make the polymer poly(tetrafluoroethene).

[ 6 ]

Question (i)

(i)

What is meant by the term unsaturated?

[ 1 ]

Question (ii)

(ii)

Describe a test to show that tetrafluoroethene is unsaturated.
test
observations

[ 2 ]

Question (iii)

(iii)

Draw the structure of a molecule of tetrafluoroethene. Show all of the atoms and all of the bonds.

[ 1 ]

Question (iv)

(iv)

Tetrafluoroethene can be polymerised to form poly(tetrafluoroethene).

Draw one repeat unit of poly(tetrafluoroethene). Show all of the atoms and all of the bonds.

[ 2 ]

11. Organic chemistry question 2

[Maximum number: 1]

Which diagram shows the displayed formula for the named organic compound?

Figure for Question 11. Organic chemistry question 2 — CAIE IGCSE Chemistry

ethanoic acid

Figure for Question 11. Organic chemistry question 2 — CAIE IGCSE Chemistry

ethene

Figure for Question 11. Organic chemistry question 2 — CAIE IGCSE Chemistry

ethanol

Figure for Question 11. Organic chemistry question 2 — CAIE IGCSE Chemistry

methane

11. Organic chemistry question 3

[Maximum number: 10]

Question (a)

(a)

Five organic compounds have the following structures.
A
C
C
A
,

Figure for Question (a) — CAIE IGCSE Chemistry

B
B

Figure for Question (a) — CAIE IGCSE Chemistry
Figure for Question (a) — CAIE IGCSE Chemistry
Figure for Question (a) — CAIE IGCSE Chemistry

D

Figure for Question (a) — CAIE IGCSE Chemistry

E

Figure for Question (a) — CAIE IGCSE Chemistry
[ 5 ]

Question (i)

(i)

Which compound is butane?

[ 1 ]

Question (ii)

(ii)

Which two compounds are structural isomers of each other?

[ 1 ]

Question (iii)

(iii)

Which compound can be made by reacting an alkene with bromine?

[ 1 ]

Question (iv)

(iv)

Which compound is a saturated hydrocarbon?

[ 1 ]

Question (v)

(v)

Name the two products made during the complete combustion of compound C.

[ 1 ]

Question (b)

(b)

Petroleum can be separated into useful substances using the apparatus shown.

Figure for Question (b) — CAIE IGCSE Chemistry
[ 5 ]

Question (i)

(i)

Name the fraction which is the most viscous.

[ 1 ]

Question (ii)

(ii)

Name the fraction with the smallest molecules.

[ 1 ]

Question (iii)

(iii)

Name the fraction which has the weakest attractive forces between molecules.

[ 1 ]

Question (iv)

(iv)

Fraction X is used as jet fuel.

Name fraction X.

[ 1 ]

Question (v)

(v)

What happens at point Y on the diagram?

[ 1 ]

11. Organic chemistry question 4

[Maximum number: 2]

Question (a)

(a)

State one gas which:

[ 2 ]

Question (i)

(i)

is the main constituent of natural gas

[ 1 ]

Question (ii)

(ii)

is unsaturated

[ 1 ]
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