2025-chemistry-f3-pp2-ms-end-t3-s1-teacher_co_ke_4
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DATE 07 Dec 2025
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SIZE 1.42 MB
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notes
About This Document
Document Type: This is a Exam Paper, designed for Testing knowledge and exam technique.
Context: Standard material from the 2025 academic period.
Key Content: Likely covers essential definitions, structured questions to test your proficiency.
Study Strategy: Attempt these questions under timed conditions to simulate a real exam environment, then check against your notes.
Recommendation: comprehensive resource for students aiming to achieve top grades in their final assessments.
Detailed Content Overview
Introduction
This notes resource titled "2025-chemistry-f3-pp2-ms-end-t3-s1-teacher_co_ke_4" provides comprehensive exam preparation materials designed to test and enhance your understanding. This resource is structured to facilitate effective learning and retention of important information.
Key Topics Covered
Learning Objectives
- Master key concepts required for examination success
- Practice answering exam-style questions effectively
- Develop time management skills for timed assessments
- Identify and address knowledge gaps in understanding
Detailed Summary
CHEMISTRY FORM 3 PAPER 2 END OF YEAR 2025 EXAM (OCTOBER) MARKING SCHEME Download this and other FREE materials from https://teacher. (a) H H | C=C–C-H H | | H H b) Reagent: Hydrogen gas. ✓¹ Conditions – Nickel catalyst /platinum -temperature of 1800C-2000C✓¹ c) (i)1, 2 – Bromopropan -1-ol ✓½ (ii) K = Carbon (IV) oxide✓½ (iii) L = 1,2- dichloropropane✓½ iv) M = Polypropene. ✓½ (d) Conditions ;- U-V light /sunlight; excess chlorine. ✓¹ (e)(i)CH₃- CH= CH₂ +Cl₂ CH₃ –CH Cl –CH₂ Cl✓¹ (ii) Addition reaction ✓¹ (f) (i) M- polypropene✓¹ (ii) - Making buckets✓¹ - Making plastic chairs and tables. (iii)- They lead to environmental pollution. ✓¹ - They are non- biodegradable since bacteria cannot degrade it , it persists in the environment. a)i) –Sodium chloride and concentrated Sulphuric (IV) acid. ✓¹ ii)- Concentrated sulphuric acid, Anhydrous Calcium chloride. ✓¹ iii) NaCl(S) + H₂SO₄(l) Na H SO₄(aq) + HCl(aq)✓¹ iv) Introduce a glass rod dipped in ammonia solution into a gas jar containing Hydrogen chloride gas.
Study Tips & Recommendations
Time Management
Practice under timed conditions to improve speed and accuracy. Allocate specific time limits to each section.
Active Practice
Attempt all questions before checking answers. Review mistakes to understand where improvements are needed.
Mark Scheme Review
Study marking schemes carefully to understand how examiners award points and structure your answers accordingly.
Regular Review
Schedule periodic reviews to reinforce learning and combat forgetting. Use spaced repetition for optimal retention.
Content Preview
CHEMISTRY FORM 3 PAPER 2 END OF YEAR 2025 EXAM (OCTOBER) MARKING SCHEME Download this and other FREE materials from https://teacher.co.ke/notes 1 a) Ostwald process b) X – ammonia c) Haber process d) i) 2NO(g) + O2(g)→ 2NO2(g ii) 4NO2(g) + O2(g) + 2H2O(l)→ 4HNO3(aq) e) Platinum – rhodium f) In presence of light HNO3 undergoes decomposition g) Making of explosives Manufacture of fertilizers Manufacture of dyes and drugs Purification of metals 2. (a) H H | C=C–C-H H | | H H b) Reagent: Hydrogen ga...
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