Chemistry 0620 · IGCSE · Formulae, functional groups and terminology

Formulae, functional groups and terminology — practice question

(a)[2]

Which two statements about members of a homologous series are true? Tick two boxes. Their chemical properties are similar. Their physical properties are similar. They share the same functional group. Their relative molecular masses are identical. They contain the same number of carbon atoms.

(b)[1]

Methane and ethane belong to which homologous series?

(c)[2]

What does the term hydrocarbon mean?

(d)[1]

Draw the structure of ethane, including every atom and every bond.

(e(i))[2]

State two conditions required for cracking.

(e(ii))[1]

Complete the chemical equation for the cracking of tetradecane so that two different hydrocarbons are produced. C₁₄H₃₀ → C₃H₆ + [BLANK]

(f)[1]

Complete the word equation for the reaction shown below. ethene + [BLANK] → ethanol

(g)[2]

Complete the sentence about this reaction by choosing words from the list. addition, condensation, ions, monomers, oxidation, polymers Ethene [BLANK] join to make poly(ethene) by [BLANK] polymerisation.

Worked solution & mark scheme

This 12-mark question has a full step-by-step worked solution and mark scheme. One marking point: The 1st and 3rd boxes have been ticked

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