Chemistry 5070 · O Level · Alkanes

Alkanes — practice question

The apparatus is used by a student to separate a mixture containing three alkanes.
(a)[2]

Name apparatus A and B in the diagram.

(b)[2]

Identify two faults in the assembled apparatus shown in the diagram.

(c(i))[1]

State why the flask is not heated directly over the flame of a Bunsen burner.

(c(ii))[1]

State why the flask is not heated using a beaker of boiling water.

(c(iii))[1]

Name one piece of apparatus suitable for heating the flask.

(d)[1]

Name the first alkane collected in the conical flask. Explain your answer.

(e)[1]

State what apparatus B is used for.

Worked solution & mark scheme

This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: A Liebig condenser

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