OCR A-Level Chemistry B: Salters (H433) · OCR H433
CD Colour by design
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
Practice questions on Colour by design
- A student wants to separate the dyes in a sample of black ink using chromatography. Descri… (5 marks, Describe and Explain)
- A student uses paper chromatography to investigate the dyes present in three different ora… (5 marks, Explain)
- A forensic scientist is investigating a suspected forgery. Two ink samples are taken — one… (5 marks, Explain)
- A fashion designer is developing a new range of clothing and wants to use natural dyes ins… (5 marks, Explain)
- A food scientist is investigating the colour additives used in a range of sweets. She diss… (5 marks, Explain)
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