Summary

• Description:

  The MS Word document comprises RCEA JOINT Chemistry Paper 2 2026 Mock Exam with Answers (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 2 theory mock examination designed to test comprehensive analytical and conceptual problem-solving in chemistry. It covers periodic table trends, thermochemistry and reaction rates, organic reaction pathways, industrial extraction of zinc, electrochemistry, and the industrial manufacture of sodium carbonate and nitric(V) acid.

  • Month Administered: July 2026
  • Duration: 2 Hours
  • Total Marks: 80
  • Number of Questions: 7 (Questions 1 - 7)
  • Structure: Seven compulsory structured, multi-part essay and data-response questions testing in-depth theoretical concepts.

  It covers the following topics:

  • Periodic classification: periodic trends, ion electron configurations, bonding representations, comparative melting points, and salt separation procedures
  • Energy changes and reaction kinetics: Hess's law calculations for the enthalpy of formation of ethane, catalytic decomposition of hydrogen peroxide, and graphical determination of reaction rates
  • Organic chemistry: laboratory preparation, collection, and properties of ethyne, addition polymerization (polyvinyl chloride), esterification between ethanol and ethanoic acid, and fuel heating values
  • Metals and industrial metallurgy: extraction of zinc from zinc blende, froth flotation, roasting, reduction with coke, and environmental by-product management
  • Electrochemistry: standard electrode potentials, construction and representation of electrochemical cells, lowest emf determinations, and identifying oxidizing agents
  • Industrial manufacture of chemicals: fractional distillation of liquefied air, Ostwald process for nitric(V) acid, and industrial stoichiometric yield calculations for ammonium sulfate fertilizer
  • The Solvay process: large-scale manufacture of sodium carbonate, raw materials, Solvay tower reactions, heat exchanger mechanics, and recycling of by-products
  • Hydrogen chemistry: laboratory preparation of dry hydrogen gas, safety precautions, reduction of copper(II) oxide, and industrial hydrogenation of oils
• File Size:

  227.40 KB
• Length:

  15 pages
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  Chemistry
• Posted By:

  Caleb_Peter

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