Summary

• Description:

  The MS Word document comprises Muslim Schools Joint Evaluation Test (MUSJET) Chemistry Paper 3 2025 Mock Exam with Marking Scheme. The PDF version is also available upon your request. The marking scheme is in a different document.

  It is a Kenya Certificate of Secondary Education (K.C.S.E) Chemistry Paper 3 (233/3) Practical Mock Examination (July 2025).

  • Duration: 2 ¼ Hours
  • Total Marks: 40
  • Number of Questions: 3 (Questions 1–3)
  • Marking Scheme: The marking scheme is in a different document.

  It covers the following topics:

  • Solubility of a solid at different temperatures (recording crystallisation temperature, computing solubility, and plotting a solubility curve)
  • Using a solubility graph to determine the temperature at which a given mass dissolves in water
  • Determining water of crystallisation in a hydrated salt through titration calculations (acidified potassium manganate(VII) as the titrant)
  • Volumetric analysis skills: preparation of a standard solution, hot titration procedure, and mole/stoichiometry computations
  • Qualitative analysis of ions using reagents (including barium nitrate, sodium hydroxide, hydrochloric acid, sodium sulphate, and aqueous ammonia)
  • Tests on an unknown solid (ignition test, reaction with acidified potassium manganate(VII), and reaction with sodium hydrogen carbonate)
  • Practical paper guidelines, including the initial reading time before handling apparatus
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  CHEMISTRY

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