Check out the suggested answers for the recent A-Level H2 Chemistry MCQ Paper 1 Answers (Subject code: 9729) by Singapore’s highly recommended A Level H2 Chemistry tutor Mr Sean Chua who has been conducting Chemistry Tuition Classes since 1999.
Answer Key to A-Level H2 Chemistry MCQ Paper 1:
| 1. | B (Topic: Atomic Structure) |
| 2. | C (Topic: Atomic Structure) |
| 3. | B (Topic: Atomic Structure) |
| 4. | C (Topic: Chemical Bonding) |
| 5. | C (Topic: Chemical Bonding) |
| 6. | A (Topic: The Gaseous State) |
| 7. | D (Topic: The Gaseous State) |
| 8. | B (Topic: The Periodic Table: Atomic, Physical & Chemical Periodicity) |
| 9. | D (Topic: The Periodic Table: Atomic, Physical & Chemical Periodicity) |
| 10. | D (Topic: The Periodic Table: Atomic, Physical & Chemical Periodicity) |
| 11. | A (Topic: The Mole Concept & Stoichiometry) |
| 12. | B (Topic: Chemical Energetics) |
| 13. | D ( Topic: Chemical Energetics) |
| 14. | D (Topic: Reaction Kinetics) |
| 15. | D (Topic: Reaction Kinetics) |
| 16. | A (Topic: Organic Chemistry – Introduction & Isomerism) |
| 17. | B (Topic: Organic Chemistry – Introduction & Isomerism) |
| 18. | A (Topic: Organic Chemistry – Hydrocarbons) |
| 19. | A (Topic: Organic Chemistry – Hydrocarbons) |
| 20. | D (Topic: Organic Chemistry – Halogen Derivatives) |
| 21. | D (Topic: Organic Chemistry – Carboxylic Acids & Derivatives) |
| 22. | C (Topic: Organic Chemistry – Hydroxy Compounds) |
| 23. | A (Topic: Organic Chemistry – Carboxylic Acids & Derivatives) |
| 24. | C (Topic: Organic Chemistry – Nitrogen Compounds) |
| 25. | B (Topic: Organic Chemistry – Nitrogen Compounds) |
| 26. | B (Topic: Chemistry of Transition Elements) |
| 27. | C (Topic: Chemistry of Transition Elements) |
| 28. | C (Topic: Organic Chemistry – Nitrogen Compounds) |
| 29. | B (Topic: Electrochemistry) |
| 30. | B (Topic: Electrochemistry) |
Summary of Topics Tested in Paper 1 Multiple Choice Questions:
- The Mole Concept & Stoichiometry (x 1 question)
- Atomic Structure (x 3 questions)
- Chemical Bonding (x 2 questions)
- The Gaseous State (x 2 questions)
- Chemical Energetics (x 2 questions)
- Reaction Kinetics (x 2 questions)
- The Periodic Table: Atomic, Physical & Chemical Periodicity (x 3 questions)
- Chemistry of Transition Elements (x 2 questions)
- Electrochemistry (x 2 questions)
- Organic Chemistry – Introduction & Isomerism (x 2 questions)
- Organic Chemistry – Hydrocarbons (x 2 questions)
- Organic Chemistry – Halogen Derivatives (x 1 question)
- Organic Chemistry – Hydroxy Compounds (x 1 question)
- Organic Chemistry – Carboxylic Acids & Derivatives (x 2 questions)
- Organic Chemistry – Nitrogen Compounds (x 3 questions)
Analysis of A Level H2 Chemistry Paper 1 MCQ:
This paper is quite balanced when it comes to the different sections of H2 Chemistry syllabus being tested, as per time allocated in their JC1 and JC2 lectures and tutorials.
- Physical Chemistry – 14 questions
- Inorganic Chemistry – 5 questions
- Organic Chemistry – 11 questions
In general, this paper is considered quite easy for those students who have strong foundation of their H2 Chemistry Concepts and associated keywords. There weren’t any extremely difficult or tricky questions this year. The questions on Organic Chemistry were relatively striaght forward and some can be solved within a minute. Only Q30 which is based on Quantitative Electrolysis is a bit troublesome and time-consuming because students are required to visualise what the question is asking and then to do the necessary calculations.
There was only 1 repeat question based on the A Level H2 Chemistry Ten Year Series (2009-2018). Question 25 came out in 2011 before.
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