Chemistry 0620 · IGCSE · Arrangement of elements

Arrangement of elements — practice question

The structures of seven compounds or elements, A, B, C, D, E, F and G, are shown. A is a three-carbon chain with hydrogen atoms. B is O=C=O. C shows a carbon-carbon double-bond structure with hydrogens. D has P bonded to three H atoms. E has C bonded to O-H and H atoms. F has sulfur bonded to three oxygens. G is a giant covalent structure. Answer the questions that follow about these structures. Each structure may be used once, more than once, or not at all.
(a(i))[1]

State which structure, A, B, C, D, E, F or G, shows a compound containing an atom from Group V of the Periodic Table.

(a(ii))[1]

State which structure, A, B, C, D, E, F or G, is an element.

(a(iii))[1]

State which structure, A, B, C, D, E, F or G, is used for cutting tools.

(a(iv))[1]

State which structure, A, B, C, D, E, F or G, is a compound that contributes significantly to climate change.

(a(v))[1]

State which structure, A, B, C, D, E, F or G, is a saturated hydrocarbon.

(b)[2]

Describe how aqueous bromine can be used to tell a saturated hydrocarbon apart from an unsaturated hydrocarbon. observations with saturated hydrocarbon observations with unsaturated hydrocarbon

(c(i))[1]

State what is meant by incomplete combustion.

(c(ii))[1]

Give one harmful effect on health caused by carbon monoxide.

Worked solution & mark scheme

This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: Answer: D

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