Chemistry 0620 · IGCSE · Oxides

Oxides — practice question

A set of oxides, A to H, is given below. A calcium oxide B aluminium oxide C silicon(IV) oxide D sulfur dioxide E carbon dioxide F iron(III) oxide G silver oxide H carbon monoxide Answer the questions that follow about oxides A to H. Each letter may be used once, more than once or not used at all.
(a)[1]

State which oxide, A to H, is the one that causes acid rain.

(b)[1]

State which oxide, A to H, has a giant covalent structure.

(c)[1]

State which oxide, A to H, acts as a reducing agent in the blast furnace.

(d)[1]

State which oxide, A to H, is the main component of bauxite.

(e)[1]

State which oxide, A to H, is the principal impurity found in iron ore.

(f)[1]

State which oxide, A to H, can be reduced by heating with copper.

Worked solution & mark scheme

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