Combined Science (Chemistry) · G2 / G3
Sec 3 Combined Science (Chemistry)
The usual Sec 3 half of the Chemistry component of O-Level Combined Science 5086/5088 (SEC G2/G3 from 2027): experimental chemistry and purification, the particulate nature of matter, chemical bonding and structure, chemical calculations, acids and bases, and qualitative analysis — at Combined Science depth.
- chapters
- 6
- ready now
- 6
- quiz questions
- 120
- exam-style papers
- 3
Start here · Chapter 1Experimental Chemistry & Purification
- Notes · 17 min read
- 20-question quiz
- 12 topical questions
- 30-mark practice paper
Chapters
6 of 6 chapters ready
Theme 1
Matter — Structures and Properties
Experimental chemistry, the particulate nature of matter, and chemical bonding and structure.
Theme 2
Chemical Reactions I
Chemical calculations with the mole concept, acid–base chemistry, and qualitative analysis.
Topical questions by chapter
One page per chapter: Core, Standard and Challenging questions with model answers.