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2023 路 Sec 4 路 Chemistry 路 Prelim Exam

Cedar Girls' 2023 Sec 4 Chemistry Prelim Exam

The 2023 Sec 4 Chemistry prelim exam set by Cedar Girls' Secondary School, 120 marks, as 3 files: Paper 1 (18 pages), Paper 2 Section A (11 pages) and Paper 2 Section B (12 pages), with the answers as separate files. Free to download for revision.

This paper was set by Cedar Girls' Secondary School. All rights in it belong to the school.

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  • Paper 1, Paper 2 Section A, Paper 2 Section B as separate PDFs, 41 pages
  • Answers as separate PDFs, 38 pages (school and unofficial answers)
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About this paper

SchoolCedar Girls' Secondary School
Year and level2023, Secondary 4
SubjectChemistry
PaperPrelim Exam: Paper 1, Paper 2 Section A and Paper 2 Section B
Total marks120
Paper 118 pages, answers 8 pages: typed worked solutions from an unofficial source, not checked by us
Paper 2 Section A11 pages, answers 15 pages: the school's own answer key, scanned
Paper 2 Section B12 pages, answers 15 pages: the school's own answer key, scanned

Parts of the paper

PartQuestionsMarksTimeCalculator
Paper 140401 hYes
Paper 2 Section A6501 h 45 min (whole Paper 2)
Paper 2 Section B3301 h 45 min (whole Paper 2)

How it fits today's syllabus

This paper was set in 2023 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

  • Methods of purification and analysis
  • Kinetic particle theory
  • Atomic structure
  • Chemical bonding and structure
  • Mole concept
  • Electrolysis
  • Chemical energetics
  • Rate of reactions
  • Reversible reactions
  • Acids, bases and salts
  • Periodic table
  • Metals and reactivity series
  • Air and atmosphere
  • Organic chemistry
  • Qualitative analysis
  • Redox

First pages

  1. Cedar Girls' 2023 Sec 4 Chemistry Prelim Exam, paper 1, page 1Paper 1, page 1
  2. Cedar Girls' 2023 Sec 4 Chemistry Prelim Exam, paper 2 section a, page 1Paper 2 Section A, page 1

Get the full paper free41 pages, answers included

Questions about this paper

How many marks is the Cedar Girls' 2023 Sec 4 Chemistry prelim paper?

120 marks over 41 pages. Paper 1 has 40 questions for 40 marks, Paper 2 Section A has 6 questions for 50 marks, Paper 2 Section B has 3 questions for 30 marks.

Does the Cedar Girls' 2023 Sec 4 Chemistry prelim paper come with answers?

Yes, for every file. The answers are separate PDFs: answers from the school and an unofficial source, not checked by us. Try the paper first, then mark it.

Is this paper still good practice in 2027?

This paper was set in 2023 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.

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