Chemistry 0620 · IGCSE · Naming organic compounds

Naming organic compounds — practice question

Industrially, ethanol is produced by reacting ethene with steam. This reaction is carried out at 300 ^{\circ}C and 60 atmospheres. C$_2$H$_4$(g) + H$_2$O(g) ⇌ C$_2$H$_5$OH(g) A catalyst is employed in this reaction. The forward reaction gives out heat.
(a)[2]

State what is meant by the term catalyst.

(b)[4]

Fill in the table using only increases, decreases or no change.

(c(i))[1]

State the general formula used for alcohols.

(c(ii))[2]

State two general characteristics, apart from the same general formula, shared by all homologous series.

(c(iii))[2]

Draw the structure of one more alcohol with three carbon atoms. Show every atom and every bond. Name the alcohol you have drawn.

(d(i))[1]

Name the ester X.

(d(ii))[2]

Give the name of the alcohol and the carboxylic acid that react to make ester X.

(e)[3]

Calculate the empirical formula for ester Y.

(f)[1]

Calculate the molecular formula for ester Z.

Worked solution & mark scheme

This 18-mark question has a full step-by-step worked solution and mark scheme. One marking point: raises the rate of a reaction

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