Chemistry 0620 · IGCSE · Alcohols

Alcohols — practice question

The reaction pathway presents five organic reactions, numbered 1 to 5. It shows: sugar $\rightarrow$ ethanol $\rightarrow$ alkene A $\rightarrow$ alkane B, ethanol $\rightarrow$ carbon dioxide + water, and ethanol $\rightarrow$ compound C.
(a)[1]

Name the reaction numbered 1.

(b)[3]

Name reaction 2, then write the chemical equation for it.

(c(i))[1]

Identify which alkene A is.

(c(ii))[1]

State the type of reaction taking place in reaction 3.

(c(iii))[2]

State the reagents and conditions required for reaction 3.

(d(i))[3]

State the reagent and conditions for reaction 4.

(d(ii))[1]

State the general formula for alkanes.

(e(i))[1]

Identify the other reagent used in reaction 5.

(e(ii))[1]

Name the homologous series that compound C belongs to.

(e(iii))[1]

Draw the structure of compound C. Show every atom and every bond.

Worked solution & mark scheme

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