Created By – Rudraksh Gupta (he/him)
PAST PAPER
Subject – Chemistry
Teacher name – Mr. Arko Gupta (Sir)
School – Gems Akademia Global School
Board/Curriculum – CAIE (IGCSE)
Syllabus (2023-25): 1. States of matter
2. Atoms, elements and compounds
3. Stoichiometry
4. Electrochemistry
5. Chemical energetics
6. Chemical reactions
7. Acids, bases and salts
8. The Periodic Table
9. Metals
10. Chemistry of the environment
11. Organic chemistry
12. Experimental techniques and chemical analysis
Chapter Weightage: Paper code – 0620
Component code – 42 (Extended) (Theory)
Series – May/June
Year – 2023
1. Oxides: 6 marks
2. Group VII Elements: 18 marks
3. Sulfuric Acid: 17 marks
4. Bases, Acids, and Titration: 21 marks
5. Organic Chemistry (Alkanes, Alkenes, Esters, Polymers): 11 marks
1. Oxides: (6/80) * 100 = 7.5%
2. Group VII Elements: (18/80) * 100 = 22.5%
3. Sulfuric Acid: (17/80) * 100 = 21.25%
4. Bases, Acids, and Titration: (21/80) * 100 = 26.25%
5. Organic Chemistry: (11/80) * 100 = 13.75%
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Created By – Rudraksh Gupta (he/him)
Year – 2022
1. Periodic Table and Elements: 8 marks
2. Calcium Hydroxide and Titrations: 21 marks
3. Transition Elements: 14 marks
4. Halogens: 13 marks
5. Organic Chemistry: 15 marks
6. Polymers: 9 marks
1. Periodic Table and Elements: (8/80) * 100 = 10%
2. Calcium Hydroxide and Titrations: (21/80) * 100 = 26.25%
3. Transition Elements: (14/80) * 100 = 17.5%
4. Halogens: (13/80) * 100 = 16.25%
5. Organic Chemistry: (15/80) * 100 = 18.75%
6. Polymers: (9/80) * 100 = 11.25%
Year – 2021
1. Periodic Table and Elements: 10 marks
2. Atomic Structure and Silver: 19 marks
3. Chemical Reactions and Stoichiometry: 7 marks
4. Electrochemistry and Ions: 12 marks
5. Compounds of Nitrogen: 20 marks
6. Polymers and Carbohydrates: 12 marks
1. Periodic Table and Elements: (10/80) * 100 = 12.5%
2. Atomic Structure and Silver: (19/80) * 100 = 23.75%
3. Chemical Reactions and Stoichiometry: (7/80) * 100 = 8.75%
4. Electrochemistry and Ions: (12/80) * 100 = 15%
5. Compounds of Nitrogen: (20/80) * 100 = 25%
6. Polymers and Carbohydrates: (12/80) * 100 = 15%
Year – 2020
1. States of Matter: 11 marks
2. Atoms, Elements, and Compounds: 13 marks
3. Stoichiometry: 13 marks
4. Electrochemistry: 16 marks
5. Chemical Energetics: 16 marks
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Created By – Rudraksh Gupta (he/him)
6. Chemical Reactions: 13 marks
7. Acids, Bases, and Salts: 8 marks
8. The Periodic Table: 16 marks
9. Metals: 16 marks
10. Organic Chemistry: 16 marks
1. States of Matter: (11/80) * 100 = 13.75%
2. Atoms, Elements, and Compounds: (13/80) * 100 = 16.25%
3. Stoichiometry: (13/80) * 100 = 16.25%
4. Electrochemistry: (16/80) * 100 = 20%
5. Chemical Energetics: (16/80) * 100 = 20%
6. Chemical Reactions: (13/80) * 100 = 16.25%
7. Acids, Bases, and Salts: (8/80) * 100 = 10%
8. The Periodic Table: (16/80) * 100 = 20%
9. Metals: (16/80) * 100 = 20%
10. Organic Chemistry: (16/80) * 100 = 20%
Year – 2019
1. Chemical Substances: 6 marks
2. Atomic Structure and Bonding: 9 marks
3. Phosphorus and Compounds: 13 marks
4. Industrial Preparation of Methanol: 17 marks
5. Copper Sulfate Crystals and Hydration: 14 marks
6. Halogens: 8 marks
7. Displacement Reactions and Reactivity Series: 13 marks
1. Chemical Substances: (6/80) * 100 = 7.5%
2. Atomic Structure and Bonding: (9/80) * 100 = 11.25%
3. Phosphorus and Compounds: (13/80) * 100 = 16.25%
4. Industrial Preparation of Methanol: (17/80) * 100 = 21.25%
5. Copper Sulfate Crystals and Hydration: (14/80) * 100 = 17.5%
6. Halogens: (8/80) * 100 = 10%
7. Displacement Reactions and Reactivity Series: (13/80) * 100 = 16.25%
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