Chemistry 5070 · O Level · Metallic bonding

Metallic bonding — practice question

Bismuth is a Group V metallic element in the Periodic Table.
(a)[2]

Complete the diagram so that it shows the structure and bonding in a typical metal. Add labels to your diagram.

(b)[2]

Describe three physical properties that are common to most metals.

(c)[1]

Bismuth combines with chlorine to give bismuth(III) chloride, $\text{BiCl}_3$. Construct the equation for this reaction.

(d)[1]

When bismuth reacts with molten bismuth(III) chloride, an ion is produced. The structure of this ion is shown. Write the formula of this ion.

(e(i))[2]

A white precipitate of $\text{BiOCl}$ forms when colourless $\text{BiCl}_3$ is added to water. $\text{BiCl}_3\text{(aq)} + \text{H}_2\text{O(l)} \rightleftharpoons \text{BiOCl(s)} + 2\text{HCl(aq)}$. Describe and explain what you would observe when a few drops of concentrated hydrochloric acid are added to this mixture.

(e(ii))[1]

Suggest why altering the pressure does not affect the reaction shown.

(f)[1]

Bismuth is used in alloys. What does the term alloy mean?

Worked solution & mark scheme

This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: Positive ions positioned at the centres of atoms and labelled as metal ions

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