Summary

• Description:

  This PDF document contains Form 3 Chemistry Paper 2 End of Term 1 Exam 2025 with Marking Scheme. It has a 2-hour duration and covers the following topics:

  • Preparation of Gases: Describing the preparation and collection of oxygen gas, including safety precautions and alternative methods.
  • Properties of Gases: Identifying physical and chemical properties of oxygen gas and its commercial uses.
  • Chemical Reactions: Writing and balancing chemical equations for reactions involved in the preparation of oxygen gas.
  • Industrial Chemistry: Describing the stages in the manufacture of sodium carbonate, including the identification of starting materials, products, and reactions involved.
  • Acids, Bases, and Salts: Describing the laboratory preparation of nitric acid, including the identification of reagents, products, and safety precautions.
  • Periodic Table: Comparing and contrasting the properties of elements based on their electronic configurations.
  • Chemical Reactions: Writing and balancing chemical equations for reactions involved in the industrial preparation of nitric acid and the extraction of sulphur.
  • Allotropes: Identifying allotropes of sulphur and their properties.
  • Stoichiometry: Performing calculations involving moles, volumes, and molar gas volumes.
  • Chromatography: Analyzing a chromatogram to identify components of a dye mixture and their properties.

  The marking scheme and answers are provided in a separate PDF document.

• File Size:

  81.13 KB
• Length:

  8 pages
• Category:

  Exams
• Level:

  Form 3
• Subject:

  CHEMISTRY
• Posted By:

  Caleb_Peter

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