2021 路 Sec 3 路 Combined Chemistry 路 End-of-Year Exam
Deyi 2021 Sec 3 Combined Chemistry End-of-Year Exam
The 2021 Sec 3 Combined Science (Chemistry) end-of-year exam set by Deyi Secondary School, 85 marks over 20 pages, with the answers as a separate file. Free to download for revision.
This paper was set by Deyi Secondary School. All rights in it belong to the school.
About this paper
| School | Deyi Secondary School |
|---|---|
| Year and level | 2021, Secondary 3 |
| Subject | Combined Science (Chemistry) |
| Paper | End-of-Year Exam (cover: Deyi Secondary School End-of-Year Examination 2021 Secondary Three Express Science (Chemistry) 5076) |
| Total marks | 85 |
| Question pages | 20 |
| Answers | 6 pages: the school's own answer key, scanned |
Parts of the paper
| Part | Questions | Marks | Time | Calculator |
|---|---|---|---|---|
| Section A | 20 | 20 | Yes | |
| Section B | 45 | Yes | ||
| Section C | 20 | Yes |
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
- Mole concept
- The Periodic Table
- Acids and bases
- Salts
- Reactivity series
First pages
Get the full paper free20 pages, answers included
Questions about this paper
How many marks is the Deyi 2021 Sec 3 Combined Chemistry EOY paper?
85 marks over 20 pages. Section A has 20 questions for 20 marks, Section B has 45 marks, Section C has 20 marks.
Does the Deyi 2021 Sec 3 Combined Chemistry EOY paper come with answers?
Yes. The answers are a separate 6-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.