Chemistry 0620 · IGCSE · Alkenes

Alkenes — practice question

(a)[2]

Give two features of members of a homologous series.

(b(i))[1]

Name the process used to produce ethene from long chain hydrocarbons such as decane, C$_{10}$H$_{22}$.

(b(ii))[2]

Fill in the chemical equation to show ethene being formed from decane, C$_{10}$H$_{22}$. C$_{10}$H$_{22}$ → C$_4$H$_8$ + .......... + ..........

(b(iii))[1]

Write the chemical equation showing ethene turning into ethanol.

(b(iv))[1]

Name the reaction type when ethene is turned into ethanol.

(b(v))[1]

Give one condition for the reaction that converts ethene into ethanol.

(c)[2]

Give two advantages of producing ethanol by fermentation rather than producing it from ethene.

(d(i))[1]

State the type of chemical reaction shown by this equation between ethene and chlorine.

(d(ii))[1]

State the type of polymerisation that makes poly(chloroethene) from chloroethene.

(d(iii))[2]

Draw a section of the poly(chloroethene) molecule formed from two monomer molecules.

(e)[2]

Complete the diagram to show the monomer structure used to make this polymer. Include every atom and every bond in the functional groups.

Worked solution & mark scheme

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