OCR GCSE Chemistry A: Gateway Science (J248) · OCR J248
C4 Predicting and identifying reactions and products
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
Practice questions on Predicting and identifying reactions and products
- A forensic scientist is analysing an unknown white powder found at a crime scene. The scie… (4 marks, Explain)
- A student is trying to identify the gases produced during an experiment. Describe the test… (4 marks, Describe)
- A student adds a few drops of sodium hydroxide solution to four separate test tubes, each … (4 marks, Describe)
- A student heats a sample of an unknown metal compound on a nichrome wire loop in a flame a… (4 marks, Explain)
- A student tests three unknown solutions to identify the halide ions present. They add a fe… (4 marks, Explain)
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