Summary

• Description:

  The PDF document comprises The Mirror Jet 2 Examinations Chemistry Paper 1 2025 Mock Exam with Marking Scheme.

  It is a KCSE Pre-Mock Examination 2025 Chemistry Paper 1 (232/1).

  • Duration: 2 Hours
  • Total Marks: 80
  • Number of Questions: 29 (Questions 1–29)
  • Marking Scheme: The marking scheme is in a different document.

  It covers the following topics:

  • Hydrocarbons (homologous series and isomers)
  • Separation of mixtures (obtaining sodium chloride from a mixture)
  • Redox reactions (oxidation numbers) and pollution control (Contact process)
  • Preparation of hydrogen gas
  • Precipitation reactions (Hydrogen sulphide and Copper(II) sulphate)
  • Preparation of salts (Sodium nitrate from sodium hydroxide)
  • Graham's law of diffusion
  • Rates of reaction (Zinc and Hydrochloric acid)
  • Isolation of oxygen from air
  • Manufacture of ammonia (Haber process) and equilibrium factors
  • Catalytic oxidation of ammonia
  • Structure and bonding (conductivity and bond types)
  • Stoichiometry and mole concept (acid-carbonate reactions)
  • Electrochemical cells and salt bridges
  • Extraction of lead metal and environmental hazards
  • Paper chromatography
  • Preparation of oxygen using sodium peroxide
  • pH values and Bunsen burner flames
  • Radioactivity (emissions and half-life calculations)
  • Lattice energy and enthalpy of solution
  • Water hardness (soft vs. hard water)
  • Preparation of ethyne gas
  • Thermochemistry (energy cycle diagrams and enthalpy of combustion)
  • Electrochemistry (Faraday's laws of electrolysis)
  • Action of heat on salts (qualitative analysis)
  • Large scale manufacture of hydrochloric acid
  • Polymers (monomers and molecular mass)
  • Periodic table trends (Ionization energy and electron configuration)
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  CHEMISTRY

Enter your details below to initiate a payment using MPESA.