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UPPER SECONDARY · SEC 3 & 4

Pure Chemistry Coaching

O-Level Syllabus 6092

Our Pure Chemistry programme is aligned with the MOE O-Level Chemistry syllabus (6092), covering all three sections across 12 topics from experimental chemistry to organic chemistry and sustainability.

  • Aligned to MOE 2026 Syllabus
  • 12 Topics · 3 Sections
  • Syllabus 6092
  • G3 Express / IP
Explore the Syllabus

All content is aligned with the requirements set out in the 2026 O-Level Pure Chemistry (6092) syllabus published by the Ministry of Education Singapore.

SCHEME OF ASSESSMENT

  • Pure Chemistry (6092) — Assessment Format

Paper 1        Multiple Choice · 40 questions· 1 h · 40 marks                                        30%

Paper 2       Structured & Free Response · Section A (70 marks, compulsory) + Section B (10 marks, answer 1 of 2)· 1 h 45 min · 80 marks

30%

Paper 3         Practical Examination· 1 h 50 min · 40 marks                                    20%

Pure Chemistry (6092) is a standalone subject taken by G3 Express and IP students. It covers a broader and deeper scope than the Combined Science Chemistry component, including metallic bonding, molar volume of gases, limiting reagents, transition metal chemistry, bond energy calculations, and a full treatment of organic chemistry.

SYLLABUS SECTIONS

Pure Chemistry (6092) — Topics Explorer

Matter — Structures & Properties

4 Topics

  • Topics
Experimental Chemistry

Experimental Design • Methods of Purification and Analysis

Key Concepts

  • Selecting appropriate apparatus for measurement (mass, volume, time, temperature)
  • Methods of purification: filtration, crystallisation, simple and fractional distillation, paper and column chromatography
  • Determining purity by fixed melting/boiling points
  • Identification of ions and gases using qualitative tests

Key Skills

  • Planning and conducting experiments safely
  • Selecting appropriate purification techniques based on properties
  • Recording and interpreting experimental data

Kinetic Particle Theory • Atomic Structure

Key Concepts

  • Kinetic particle theory: states of matter, diffusion, Brownian motion
  • Atomic structure: protons, neutrons, electrons; proton number and nucleon number
  • Isotopes and relative atomic mass
  • Electronic configuration and its relationship to the Periodic Table

Key Skills

  • Using kinetic particle theory to explain physical properties
  • Writing electronic configurations for elements 1–20

lonic Bonding • Covalent Bonding • Metallic Bonding

Key Concepts

  • Ionic bonding: formation of ions, giant ionic structures, properties
  • Covalent bonding: shared electron pairs, simple molecular and giant covalent structures
  • Metallic bonding: sea of electrons, properties of metals
  • Relationship between structure, bonding and physical properties

Key Skills

  • Drawing dot-and-cross diagrams for ionic and covalent compounds
  • Predicting properties based on structure and bonding

The Mole Concept • Stoichiometry

Key Concepts

  • Relative atomic mass (Ar) and relative molecular mass (Mr)
  • The mole concept: Avogadro's number, molar mass
  • Molar volume of gases at RTP
  • Stoichiometric calculations: mass, moles, volume

Key Skills

  • Calculating moles from mass, volume or number of particles
  • Using stoichiometry to calculate quantities in reactions
  • Determining empirical and molecular formulae
  • Assessment Format
Paper 1         Multiple Choice · 40 questions · 1 h                       30%
Paper 2        Structured & Free Response · 1 h 45 min                             50%
Paper 3        Practical Examination · 1 h 50 min                                    20%

Chemical Reactions

6 topics

  • Topics
Acid-Base Chemistry

Acids and Bases • Salts

Key Concepts

  • Properties of acids and bases; pH scale; indicators
  • Reactions of acids with metals, metal oxides, metal hydroxides, metal carbonates
  • Preparation of soluble and insoluble salts
  • Neutralisation and its applications

Key Skills

  • Identifying acidic, alkaline and neutral solutions
  • Planning preparation of salts using appropriate methods

Tests for lons and Gases

Key Concepts

  • Tests for cations: flame tests (Li, Na, K, Ca, Cu), NaOH tests (NH4+, Fe2+, Fe3+, Cu2+, Zn2+, Al3+)
  • Tests for anions: CO3²⁻, SO4²⁻, Cl⁻, NO3⁻
  • Tests for gases: H2, O2, CO2, NH3, Cl2, SO2, HCl

Key Skills

  • Carrying out and interpreting qualitative analysis tests
  • Identifying unknown substances from test results

Oxidation and Reduction • Electrochemistry

Key Concepts

  • Oxidation and reduction in terms of oxygen, hydrogen and electron transfer
  • Oxidation states and their changes
  • Electrolysis: electrolytes, electrodes, products at cathode and anode
  • Factors affecting electrolysis products
  • Industrial applications: electroplating, extraction of aluminium, purification of copper

Key Skills

  • Assigning oxidation states and identifying redox reactions
  • Predicting products of electrolysis

Periodic Trends • Group Properties

Key Concepts

  • Trends across periods: atomic radius, ionisation energy, electronegativity
  • Group I (alkali metals): reactions with water and oxygen; trend in reactivity
  • Group VII (halogens): physical properties, reactions, displacement reactions
  • Group 0 (noble gases): properties and uses
  • Transition metals: variable oxidation states, catalytic activity, coloured compounds

Key Skills

  • Predicting properties of elements based on Periodic Table position
  • Explaining trends using electronic configuration

Exothermic and Endothermic Reactions • Energy Diagrams

Key Concepts

  • Exothermic reactions: energy released to surroundings; negative ΔH
  • Endothermic reactions: energy absorbed from surroundings; positive ΔH
  • Energy level diagrams; activation energy; effect of catalysts
  • Bond breaking (endothermic) and bond forming (exothermic)

Key Skills

  • Drawing and interpreting energy level diagrams
  • Calculating energy changes from bond energies

Factors Affecting Rate • Collision Theory

Key Concepts

  • Factors: concentration, pressure, temperature, particle size, catalysts
  • Collision theory: effective collisions, activation energy
  • Measuring rate of reaction: gas volume, mass change, colour change
  • Catalysts: homogeneous and heterogeneous; industrial importance

Key Skills

  • Designing experiments to investigate factors affecting rate
  • Interpreting rate graphs and calculating average rate
  • Assessment Format
Paper 1         Multiple Choice · 40 questions · 1 h                       30%
Paper 2        Structured & Free Response · 1 h 45 min                            50%
Paper 3        Practical Examination · 1 h 50 min                                    20%

Chemistry in a Sustainable World

2 Topics

  • Topics
Organic Chemistry

Alkanes • Alkenes • Alcohols • Carboxylic Acids • Esters • Macromolecules

Key Concepts

  • Alkanes: properties, combustion, substitution reactions; cracking
  • Alkenes: properties, addition reactions (H2, HX, H2O, X2); test for unsaturation
  • Alcohols: properties, oxidation, esterification, fermentation
  • Carboxylic acids: properties, reactions with carbonates, alcohols
  • Esters: formation and uses; fats and oils
  • Macromolecules: addition polymers (polyethene, PVC), condensation polymers (nylon, polyester), proteins, starch

Key Skills

  • Drawing structural formulae and naming organic compounds
  • Identifying functional groups and predicting reactions

Composition of Air • Pollution and Solutions

Key Concepts

  • Composition of clean air: N2 (~78%), O2 (~21%), noble gases, CO2, water vapour
  • Pollutants: CO, SO2, NOx, particulates — sources and effects
  • Greenhouse effect and climate change: CO2, CH4, H2O
  • Methods to reduce pollution: catalytic converters, flue gas desulfurisation

Key Skills

  • Explaining the sources and effects of air pollutants
  • Evaluating methods to reduce air pollution
  • Assessment Format
Paper 1         Multiple Choice · 40 questions · 1 h                           30%
Paper 2        Structured & Free Response · 1 h 45 min                                 50%
Paper 3        Practical Examination · 1 h 50 min                                        20%

HOW ASPIRE HUB HELPS

Our Approach to O-Level Chemistry

01

Conceptual Clarity from the Ground Up

Chemistry builds on itself — bonding explains properties, which explains reactions, which explains organic chemistry. Our coaches ensure each concept is understood deeply before moving on, preventing the accumulation of misconceptions.

02

Mastering Chemical Calculations

Mole concept and stoichiometry are perennial challenge areas. Our structured approach to chemical calculations — from relative atomic mass to limiting reagents — gives students a systematic method they can apply confidently in examinations.

03

Qualitative Analysis Preparation

Qualitative analysis tests are a high-yield area in O-Level Chemistry examinations. We use systematic mnemonics and repeated practice to ensure students can recall and apply all required tests accurately under examination conditions.

04

Organic Chemistry Made Manageable

Organic chemistry is often the most challenging section. Our coaches break it down into functional groups, reaction types and mechanisms, helping students see the patterns that connect all organic reactions.

05

Examination Technique & Paper Strategy

Paper 2 of 6092 includes a Section B choice question. Our coaches train students to identify which question plays to their strengths and to manage their time across Section A’s data-based questions and free-response items.

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North 1 centre
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Lentor MRT (TE5)
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1 min walk
›
Novena (United Square)
Novena MRT (NS20)
101 Thomson Road, #01-33/34/35, Singapore 307591
5 min walk
Bukit Timah
Beauty World MRT (DT5)
144 Upper Bukit Timah Road, #03-06A, Singapore 588177
1 min walk
Alexandra Village
Queenstown MRT (EW19)
122 Bukit Merah Lane 1, #01-54/56/58, Singapore 150122
10–12 min walk
Rochester Mall
Buona Vista MRT (EW21 / CC22)
35 Rochester Drive, #02-08, Singapore 138639
5 min walk
Paya Lebar Quarter
Paya Lebar MRT (EW8 / CC9)
10 Paya Lebar Road, #03-21, Singapore 409057
1 min walk
Parkway Parade
Marine Parade MRT (TE26)
80 Marine Parade Road, #01-58, Singapore 449269
5 min walk
Jurong Point
Boon Lay MRT (EW27)
1 Jurong West Central 2, #01-40/41/42, Singapore 648886
2 min walk
West Mall
Bukit Batok MRT (NS2)
1 Bukit Batok Central Link, #02-21/22, Singapore 658713
2 min walk
Hillion Mall
Bukit Panjang MRT (DT1)
17 Petir Road, #02-01/02, Singapore 678278
2 min walk
Seletar Mall
Fernvale LRT (SW5)
33 Sengkang West Avenue, #03-14/15, Singapore 797653
2 min walk
Serangoon NEX
Serangoon MRT (NE12 / CC13)
23 Serangoon Central, #04R-79, Singapore 556083
1 min walk
Woodleigh Mall
Woodleigh MRT (NE11)
11 Bidadari Park Drive, #01-07, Singapore 367803
1 min walk
Lentor Modern
Lentor MRT (TE5)
1 Lentor Central, #01-34, Singapore 788877
1 min walk

Ready to Excel in Pure Chemistry?

Our coaches will build the conceptual clarity, calculation skills and examination technique your child needs to achieve their best in O-Level Pure Chemistry (6092).

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