Download "Form 4 Chemistry Paper 3 End Term 2 2025 Exam with Marking Scheme" Instantly.

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Summary

  • Description:

    The MS Word document comprises the Form 4 Chemistry Paper 3 End Term 2 2025 Exam with Marking Scheme. The PDF version is also available upon your request. The marking scheme is in a different document.

    This practical exam paper contains three compulsory questions that assess different laboratory skills. The paper is marked out of a total of 40 marks, and the time allocated for completion is 2 hours and 15 minutes.

    The practical tasks cover the following key areas:

    • Quantitative Analysis: This question involves two parts:
      • Thermochemistry: Determining the molar enthalpy of a solution by measuring temperature changes and plotting a graph to find the temperature difference (ΔT).
      • Volumetric Analysis: Performing a redox titration with acidified potassium manganate (VII) to calculate the number of moles of water of crystallization in a hydrated salt.
    • Qualitative Analysis (Inorganic): A series of tests on an unknown solid (M) to identify its constituent cation and anion using reagents like aqueous ammonia, sodium hydroxide, and various salt solutions.
    • Qualitative Analysis (Organic): A series of tests on an unknown organic solid (P) to identify its functional group(s) through combustion and reactions with reagents like sodium hydrogen carbonate and acidified potassium dichromate(VI).
  • File Size:
    568.09 KB
  • Length:
    6 pages
  • Category:
    Exams
  • Level:
    Form 4
  • Subject:
    CHEMISTRY
  • Posted By:
    Caleb_Peter

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