Chemistry 0620 · IGCSE · Separation and purification

Separation and purification — practice question

(a(i))[1]

State the name of the process used to obtain oxygen from liquid air.

(a(ii))[1]

State the name of the process used to separate the different dyes in ink.

(a(iii))[1]

State the name of the process used to make ethanol from simple sugars.

(a(iv))[1]

State the name of the process used to collect water from aqueous sodium chloride.

(a(v))[1]

State the name of the process used to separate the precipitate produced when aqueous silver nitrate is mixed with aqueous sodium chloride.

(b(i))[1]

State what the term element means.

(b(ii))[1]

State what the term compound means.

(b(iii))[1]

State what the term ion means.

Worked solution & mark scheme

This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: fractional distillation of liquefied air

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