Chemistry 0620 · IGCSE · Simple molecules and covalent bonds

Simple molecules and covalent bonds — practice question

(a(i))[2]

State two physical properties of a compound that has a simple molecular structure.

(a(ii))[1]

Complete this sentence about a covalent bond. A covalent bond is made when two atoms share a pair of ................. .

(a(iii))[2]

Complete Fig. 2.1 by drawing the dot-and-cross diagram for one molecule of hydrogen chloride. Include only the outer-shell electrons.

(b)[1]

State the general name for any negative ion.

(c(i))[1]

State one further use of diamond.

(c(ii))[1]

Choose the correct statement describing the structure and bonding in diamond. Tick (✓) one box: simple covalent molecule / giant covalent / simple ionic / giant ionic.

Worked solution & mark scheme

This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: low melting point or low boiling point

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