Summary

• Description:

  The MS Word document comprises THE G8 Chemistry Paper 3 2026 Pre-Mock Exam with Marking Scheme. The PDF version is also available upon your request. The marking scheme is in a different document.

  It was a KCSE Chemistry Paper 3 practical examination evaluating laboratory techniques, experimental procedures, titration skills, graphical analysis, calculations, and qualitative analysis. This practical revision paper with answers and marking scheme is excellent for KCSE practical preparation and PDF download.

  • Month Administered: June 2026
  • Duration: 2¼ Hours
  • Total Marks: 40 Marks
  • Number of Questions: 3 Questions (1–3)
  • Structure: Question 1 (22 Marks), Question 2 (10 Marks), Question 3 (8 Marks).

  It covers the following topics:

  • Question 1: Practical Investigation and Volumetric Analysis
    • Reaction of magnesium with hydrochloric acid
    • Rate of reaction experiment
    • Graph plotting and interpretation
    • Volumetric analysis and acid-base titration
    • Mole calculations
    • Determination of mass from experimental data
  • Question 2: Qualitative Analysis of Salt B
    • Flame tests
    • Reaction with sodium hydroxide
    • Reaction with aqueous ammonia
    • Tests using lead(II) nitrate
    • Tests using barium nitrate and nitric(V) acid
    • Identification of cations and anions
  • Question 3: Qualitative Analysis of Organic Compound C
    • pH determination using universal indicator
    • Reaction with bromine water
    • Reaction with acidified potassium manganate(VII)
    • Reaction with sodium hydrogen carbonate
    • Identification of functional groups
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  CHEMISTRY
• Posted By:

  Caleb_Peter

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