Chemistry 5070 · O Level · Alkenes

Alkenes — practice question

(a(i))[1]

On Fig. 5.1, circle the functional group that reacts with aqueous bromine.

(a(ii))[2]

Describe the colour change seen when excess compound A is added to a few drops of aqueous bromine in a test tube.

(a(iii))[1]

Deduce the molecular formula for compound A.

(a(iv))[2]

Compound A is a liquid at room temperature. Describe how the particles in a liquid move and how far apart they are.

(b)[2]

Compound B is polymerised. Draw two repeat units of the polymer produced when compound B is polymerised.

(c)[2]

Describe two environmental issues caused by the disposal of plastics.

Worked solution & mark scheme

This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: circle just the C=C bond

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