Chemistry 0620 · IGCSE · Formulae, functional groups and terminology

Formulae, functional groups and terminology — practice question

Ethanoic acid and methacrylic acid are both members of the carboxylic acid family.
(a)[2]

Fill in the blanks to complete the word equation for ethanoic acid reacting with calcium. ethanoic acid + calcium → [BLANK] + [BLANK]

(b(i))[1]

State the homologous series to which ethanol belongs.

(b(ii))[2]

Ethanol can be produced by fermentation. Describe two conditions required for fermentation.

(c(i))[1]

On Fig. 7.1, circle the functional group that reacts with aqueous bromine.

(c(ii))[1]

State the colour shown by aqueous bromine.

(c(iii))[1]

Work out the molecular formula of methacrylic acid.

(d)[2]

Use Table 7.1 to work out the relative molecular mass of methyl methacrylate.

(e)[2]

Describe any two environmental problems caused by plastics.

(f)[1]

Poly(ethene) is a polymer. Draw the displayed formula for the monomer that is used to produce poly(ethene).

Worked solution & mark scheme

This 13-mark question has a full step-by-step worked solution and mark scheme. One marking point: calcium ethanoate salt

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI