Summary

• Description:

  The PDF document comprises Alliance Boys High School Chemistry Paper 2 2024 Mock Exam with Answers (Marking Scheme). The marking scheme is towards the end of the document.

  It is a KCSE Chemistry Paper 2 (233/2) mock examination.

  • Duration: 2 Hours
  • Total Marks: 80
  • Number of Questions: 7 structured questions (Questions 1–7; all compulsory)

  It covered the following topics:

  • Rates of reaction including decomposition of hydrogen peroxide and graphical analysis
  • Chemical kinetics and determination of reaction rate at specific times
  • Chemical equations and catalytic decomposition reactions
  • Chemical equilibrium and the Haber process (effects of temperature, pressure, and catalysts)
  • Energy level diagrams and enthalpy changes
  • Organic chemistry pathways starting from ethanol including dehydration, oxidation, esterification, and polymerization
  • Empirical formula determination from combustion data
  • Periodic table trends including atomic radius, ionization energy, and bonding type
  • Electrolysis including electrolysis of dilute sulphuric acid and electrode reactions
  • Quantitative electrolysis using Faraday’s laws
  • Electrochemical cells including the Leclanché dry cell and its reactions
  • Industrial chemistry focusing on the Contact Process for manufacture of sulphuric acid
  • Environmental effects of sulphur dioxide and pollution control
  • Concentration and molarity calculations involving commercial acids
  • Extraction of sodium using the Downs cell and associated reactions
  • Properties and reactions of sodium including reaction with water
  • Qualitative analysis of salts including cation and anion identification
  • Use of sodium hydroxide and ammonia solutions in confirmatory tests
  • Separation techniques such as filtration and dissolution
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  CHEMISTRY

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