September 2021 · Paper 1
Pre-2025 SyllabusDownload the official question paper from the MATSEC website, attempt it first, then use this page to check your working.
States of matter · Water properties · Separation techniques
Q2 — Not included
This question tested content outside the current SEC 06 syllabus and has been intentionally excluded.
Q2 — Not included (outside current syllabus)
Composition of air · Rusting & prevention
Preparation of gases (O₂, H₂, CO₂)
Oxidation & reduction
Q6 — Not included
This question tested content outside the current SEC 06 syllabus and has been intentionally excluded.
Q6 — Not included (outside current syllabus)
Transition metals — Fe & Cu
Organic Chemistry · Alkanes · Fossil fuels — energy & environment
Q9 — Not included
This question tested content outside the current SEC 06 syllabus and has been intentionally excluded.
Q9 — Not included (outside current syllabus)
Organic Chemistry · Polymers
Electrolysis of aqueous solutions
Indicators & pH scale · Transition metals — Fe & Cu · Quantitative chemistry — moles & calculations