Chemistry 5070 · O Level · Polymers

Polymers — practice question

Polymers are formed through either an addition reaction or a condensation reaction.
(a(i))[1]

Fig. 9.1 shows the equation for the reaction used to prepare a polymer. The monomer contains both an alcohol group and a carboxylic acid group. Name the type of linkage that joins the repeat units to each other in this polymer.

(a(ii))[1]

Explain how the equation shows that the polymer is made by a condensation reaction.

(b)[3]

A polymer contains 10.8% carbon, 17.1% fluorine and 72.1% bromine by mass. Calculate the empirical formula of this polymer.

(c(i))[1]

Some plastics are made from polymers that are hydrocarbons. Explain why there is an accumulation of plastics in the oceans. Use ideas about the properties of plastics.

(c(ii))[2]

Explain why the disposal of plastics causes an environmental challenge.

Worked solution & mark scheme

This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: ester linkage

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