WJEC A-Level Chemistry (Wales) · WJEC A420QS
1 Physical chemistry
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
Practice questions on Physical chemistry
- A forensic scientist is investigating an ink sample taken from a suspected forged document… (5 marks, Explain)
- A sports drink manufacturer claims that the orange colouring used in their drink is a sing… (5 marks, Explain)
- A student is investigating whether a sample of a food dye is a pure substance or a mixture… (5 marks, Explain)
- A pharmaceutical company makes two products: pure aspirin tablets and a cold-relief formul… (5 marks, Explain and Describe)
- A student wants to separate crude oil into its different fractions. Explain how fractional… (5 marks, Explain)
- A forensic scientist is testing an unknown white powder found at a crime scene. She dissol… (5 marks, Explain)
- A jeweller claims that a sample of metal is pure gold. A technician heats the sample and r… (5 marks, Explain)
- A student wants to separate a mixture of two liquids, ethanol and water, to obtain a sampl… (5 marks, Explain and Describe)
- A student is given two white solid substances, substance A and substance B. The student is… (5 marks, Describe)
- A food scientist is checking whether a red food colouring used in a new drink is a pure su… (5 marks, Explain)
- A student carries out paper chromatography on a sample of food colouring to find out wheth… (5 marks, Explain)
- A student investigates whether a sample of aspirin is pure. She measures the melting point… (5 marks, Explain)
- A student carries out paper chromatography on a sample of food colouring to find out wheth… (5 marks, Explain)
- A student wants to find out whether a sample of green ink is a pure substance or a mixture… (5 marks, Explain)
- A chemist is investigating two white solid substances, substance A and substance B. Substa… (5 marks, Explain)
- A food scientist is testing a sports drink to find out whether the orange colouring used i… (5 marks, Explain)
- A pharmacy technician is making a painkiller tablet. The tablet contains four different su… (5 marks, Explain)
- A forensic scientist uses paper chromatography to analyse an ink sample taken from a docum… (5 marks, Explain)
- A scientist uses paper chromatography to investigate a sample of black ink taken from a fe… (5 marks, Explain)
- A pharmacist is checking whether a batch of a pain-relief tablet is a pure compound or a m… (5 marks, Explain)
▶ Practise Physical chemistry with instant AI marking (free) →