2021 路 Sec 3 路 Combined Chemistry 路 End-of-Year Exam
Chua Chu Kang 2021 Sec 3 Combined Chemistry End-of-Year Exam
The 2021 Sec 3 Combined Science (Chemistry) end-of-year exam set by Chua Chu Kang Secondary School, 85 marks over 19 pages, with the answers as a separate file. Free to download for revision.
This paper was set by Chua Chu Kang Secondary School. All rights in it belong to the school.
About this paper
| School | Chua Chu Kang Secondary School |
|---|---|
| Year and level | 2021, Secondary 3 |
| Subject | Combined Science (Chemistry) |
| Paper | End-of-Year Exam |
| Total marks | 85 |
| Question pages | 19 |
| Answers | 4 pages: the school's own answer key, scanned |
Parts of the paper
| Part | Questions | Marks | Time | Type |
|---|---|---|---|---|
| Paper 1 | 20 | 20 | Multiple-choice | |
| Paper 3 Section A | 9 | 45 | Structured | |
| Paper 3 Section B | 2 | 20 | Free response |
How it fits today's syllabus
This paper was set in 2021 for the GCE O-Level. The final O-Level sitting is in October and November 2026. From 2027 Sec 4 students sit the Singapore-Cambridge Secondary Education Certificate (SEC), and MOE treats an O-Level grade as equivalent to G3. Syllabuses change over time, so check an older paper against the current syllabus. See the O-Level periodic table for what to know now.
Topics in this paper
- Experimental chemistry
- Methods of purification and analysis
- Kinetic particle theory
- Atomic structure
- Chemical bonding
- The Periodic Table
- Acids and bases
- Salts
First pages
Get the full paper free19 pages, answers included
Questions about this paper
How many marks is the Chua Chu Kang 2021 Sec 3 Combined Chemistry EOY paper?
85 marks over 19 pages. Paper 1 has 20 questions for 20 marks, Paper 3 Section A has 9 questions for 45 marks, Paper 3 Section B has 2 questions for 20 marks.
Does the Chua Chu Kang 2021 Sec 3 Combined Chemistry EOY paper come with answers?
Yes. The answers are a separate 4-page PDF: the school's own answer key, scanned. Try the paper first, then mark it.
Is this paper still good practice in 2027?
This paper was set in 2021 for the GCE O-Level. The final O-Level sitting is in October and November 2026. From 2027 Sec 4 students sit the Singapore-Cambridge Secondary Education Certificate (SEC), and MOE treats an O-Level grade as equivalent to G3. Syllabuses change over time, so check an older paper against the current syllabus.