Summary

• Description:

  The PDF document comprises ACK Joint Examination Chemistry Paper 2 2026 Pre-Mock Exam with Marking Scheme. The marking scheme is in a different document.

  It was an ACK Joint Evaluation Chemistry Paper 2 examination presenting comprehensive structured questions on electrochemistry, mole concept, organic synthesis, periodic trends, and reaction kinetics. This revision paper serves as an ideal tool for students aiming for top performance in KCSE Chemistry.

  • Month Administered: July 2026
  • Duration: 2 Hours
  • Total Marks: 80 Marks
  • Number of Questions: 7 Questions

  It covers the following topics:

  • Electrochemistry & Industrial Processes
    • Standard reduction electrode potentials and electrochemical cell setup
    • Electromotive force (e.m.f.) calculations and identification of oxidizing agents
    • Faraday's Law of electrolysis calculations for industrial extraction of aluminum
    • Primary cells, fuel cells, and applications of electroplating
  • Solutions, Solubility & Stoichiometry
    • Fractional crystallization procedure and mass of salt crystallized upon cooling
    • Water hardness removal using ion exchange resins and disadvantages of hard water
    • Precipitation reactions with aqueous ammonia and complex ion formation
    • Gay-Lussac's Law of combining gas volumes and residual gas volume calculations
    • Empirical formula and molecular formula calculations (Ascorbic Acid / Vitamin C)
    • Molarity and ion concentration calculations in volumetric solutions
  • Organic Chemistry & Periodic Trends
    • IUPAC nomenclature for branched alkanes, haloalkanes, and alkynes
    • Distinguishing chemical tests between saturated/unsaturated organic compounds
    • Preparation, collection, and industrial uses of ethyne gas
    • Structural isomerism in alkanes (C5H12 isomers)
    • Periodic table trends across periods and down groups (atomic radius, ionic radius, reactivity)
    • Hydrolysis of metal chlorides and litmus paper observations
  • Inorganic Manufacture & Reaction Kinetics
    • Laboratory preparation and storage of Nitric (V) acid
    • Reaction stoichiometry for industrial ammonium nitrate fertilizer production
    • Graphical analysis of reaction rates (volume of hydrogen vs. time)
    • Factors affecting reaction rates and chemical equilibrium (Le Chatelier's principle)
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  CHEMISTRY
• Posted By:

  Caleb_Peter

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