Skip to content

Course home

Sign up

7.2 Reactions of alkenes and alcohols

EasyMediumHard
123456789101112131415161718192021
Question 10
F

The table gives the names and structural formulae of the first four members of the homologous series of carboxylic acids. One structural formula is missing.

Table: The names and structural formulae of the first four carboxylic acids

Name of carboxylic acidStructural formula
Methanoic acidHCOOH\text{HCOOH}HCOOH
Ethanoic acidCH3COOH\text{CH}_3\text{COOH}CH3​COOH
Propanoic acid
Butanoic acidCH3CH2CH2COOH\text{CH}_3\text{CH}_2\text{CH}_2\text{COOH}CH3​CH2​CH2​COOH
a.

Complete the table by giving the structural formula of propanoic acid.

[1]
b.

Use the table to explain how the structural formulae show that all four of these compounds are carboxylic acids.

[1]
c.

Ethanoic acid dissolves in water. Give the pH of the solution formed, and explain your answer.

[2]
Markscheme

7.2 Reactions of alkenes and alcohols Questions

  1. GCSE
  2. /Chemistry
  3. /7.2 Reactions of alkenes and alcohols

40 exam-style questions on AQA GCSE Chemistry 7.2 Reactions of alkenes and alcohols, covering 7.2.1 Structure and formulae of alkenes, 7.2.2 Reactions of alkenes, 7.2.3 Alcohols, 7.2.4a Carboxylic acids, and 7.2.4b Carboxylic acids as weak acids. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank