Chemistry 0620 · IGCSE · Formulae, functional groups and terminology

Formulae, functional groups and terminology — practice question

Alkenes and alkanes are each homologous series of hydrocarbons.
(a)[2]

What does the term hydrocarbon mean?

(b)[3]

Give three characteristics of a homologous series.

(c)[2]

Name and draw the structure of the second alkene in the homologous series. Show every atom and every bond.

(d)[2]

Name the reagent and conditions required to change an alkene into an alcohol.

(e(i–iii))[5]

(i) Give the name of the carboxylic acid obtained from butanol and draw its structure, with every atom and bond displayed. (ii) State the reagent needed to change ethanol into ethanoic acid. (iii) State the type of chemical change that takes place when ethanol is changed into ethanoic acid.

(f)[5]

Describe how a student could make the ester methyl ethanoate in a school laboratory. In your description, include the names of the two organic starting materials, the essential reaction conditions, and a chemical equation for the reaction.

Worked solution & mark scheme

This 19-mark question has a full step-by-step worked solution and mark scheme. One marking point: a compound made up of carbon and hydrogen atoms

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