Summary

• Description:

  The MS Word document comprises KCSE 2026 Chemistry Paper 1 Prediction Paper with Answers (Set 5). The PDF version is also available upon your request. The marking scheme is in a different document.

  It was a KCSE Chemistry Paper 1 prediction examination designed to prepare candidates for the national assessment.

  This assessment examines fundamental chemical principles spanning atomic theory, stoichiometry, gas laws, chemical equilibria, organic reactions, thermochemistry, and qualitative analysis. It requires learners to apply theoretical principles, balance equations, and analyze laboratory apparatus setups.

  • Month Administered: July 2026
  • Duration: 2 Hours
  • Total Marks: 80
  • Number of Questions: 28 (Questions 1 - 28)
  • Structure: Single section consisting of 28 structured theoretical and numerical questions

  It covers the following topics:

  • Atomic Structure and Bonding: Ion Formation, Electron Configuration, Lewis Structures, and Chemical Formulas
  • Laboratory Techniques and Flame Tests: Bunsen Burner Non-luminous vs Luminous Flames
  • Separation of Mixtures: Fractional Crystallisation and Paper Chromatography Pigment Extraction
  • Empirical and Molecular Formula Calculations
  • Acids, Bases, and Indicators: Brønsted-Lowry Theory, Soil pH Amendment, and Equilibrium Shifts
  • Organic Chemistry: Alkane Halogenation, Isomerism, and Perspex Addition Polymerisation
  • Gas Laws: Gay-Lussac's Law and Reacting Gaseous Volumes
  • Inorganic Chemistry: Preparation and Properties of Sulphur (IV) Oxide and Hydrogen Sulphide
  • Physical Chemistry: Cooling Curves, Latent Heat, and Rates of Reaction
  • Salts: Laboratory Preparation of Insoluble and Soluble Salts (Copper Chloride) and Salt Classification
  • Reactivity Series: Carbon Reduction of Metal Oxides
  • Stoichiometry: Limiting Reagents and Molar Gas Volume Calculations
  • Radioactivity: Penetrating Power of Nuclear Radiations and Biological Effects
  • Water Hardness: Temporary vs Permanent Hardness and Electrical Conductivity
  • Redox Chemistry: Oxidation Numbers of Transition Metals (Manganese) and Electrolysis of Copper (II) Sulphate
  • Intermolecular Forces: Hydrogen Bonding vs Van der Waals Forces
  • Chemical Properties of Concentrated Sulphuric (VI) Acid (Dehydration and Hygroscopy)
  • Chemical Bonding and Structure: Giant Ionic vs Molecular Structures (MgO vs PCl5 Melting Points)
• File Size:

  179.01 KB
• Length:

  11 pages
• Category:

  KCSE Prediction Papers
• Level:

  Form 4
• Subject:

  Chemistry
• Posted By:

  Caleb_Peter

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