Chemistry 0620 · IGCSE · Elements, compounds and mixtures

Elements, compounds and mixtures — practice question

This question concerns elements. aluminium carbon iron hydrogen oxygen silicon sodium sulfur Answer the questions that follow about these elements. Each element can be used once, more than once, or not used at all.
(a(i))[1]

Name the element that can act as a fuel.

(a(ii))[1]

Name the element whose oxide has a structure similar to diamond.

(a(iii))[1]

Name the element that forms an amphoteric oxide.

(a(iv))[1]

Name the element that shows oxidation states of $+2$ and $+3$.

(a(v))[1]

Name the element obtained from bauxite.

(a(vi))[1]

Name the element whose atoms have the electronic structure $2,6$.

(b(i))[2]

Explain how sacrificial protection stops rusting.

(b(ii))[1]

State one further method of rust prevention.

Worked solution & mark scheme

This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: “hydrogen, or carbon” …

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