Chemistry 0620 · IGCSE · Solids, liquids and gases

Solids, liquids and gases — practice question

Limonene is a volatile liquid with an orange smell.
(a(i))[3]

Explain these observations in terms of the kinetic particle model.

(a(ii))[2]

At $-80\,^{\circ}\text{C}$, what physical state is limonene in? Explain your answer.

(b(i))[1]

State what the term catalyst means.

(b(ii))[1]

State what the term oxidation means.

(c(i))[1]

Which structural feature of the $\alpha$-terpineol molecule shows that it is an unsaturated compound?

(c(ii))[2]

Describe the colour change of aqueous bromine when excess $\alpha$-terpineol is added. from ................. to .................

Worked solution & mark scheme

This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: particles change from liquid to vapour

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