Here is a summary of the OCR A Level Chemistry A (H432) specification.

Overview

• Qualification: OCR Level 3 Advanced GCE in Chemistry A (H432)
• First Assessment: 2017
• Latest Version: 2.9 (June 2025)
• Approach: Content-led, modular structure

Course Structure

The A Level is divided into six teaching modules:

1. Module 1: Development of practical skills
   • Practical skills assessed in written exams and through the Practical Endorsement (non-exam assessment).
2. Module 2: Foundations in chemistry
   • Atomic structure, quantitative chemistry, acids, redox, bonding.
3. Module 3: Periodic table and energy
   • Periodicity, Group 2, halogens, qualitative analysis, enthalpy, reaction rates, equilibrium.
4. Module 4: Core organic chemistry
   • Basic organic concepts, hydrocarbons, alcohols, haloalkanes, synthesis, IR and MS analysis.
5. Module 5: Physical chemistry and transition elements
   • Advanced rates, equilibrium, pH, buffers, thermodynamics, redox, electrode potentials, transition metals.
6. Module 6: Organic chemistry and analysis
   • Aromatic compounds, carbonyls, carboxylic acids, nitrogen compounds, polymers, synthesis, chromatography, NMR.

Assessment

• Three written papers (synoptic and extended response questions included):
  1. Periodic table, elements and physical chemistry (37%)
  2. Synthesis and analytical techniques (37%)
  3. Unified chemistry (26%)
• Practical Endorsement (Component 04)
  • Separate pass/fail reported on certificate.
  • Requires completion of at least 12 practical activities from defined Practical Activity Groups (PAGs).
  • Assessed against Common Practical Assessment Criteria (CPAC).

Key Features

• Co-teachable with AS Level Chemistry A.
• Emphasis on practical skills integrated with theory.
• Mathematical requirements embedded throughout (≥20% of exam marks).
• How Science Works (HSW) integrated to develop scientific thinking and context.
• Support materials include delivery guides, lesson elements, Active Results, and ExamBuilder.

Support & Resources

• Teacher support: Subject Advisors, CPD, newsletters, Practical Skills Handbook, Maths Skills Handbook.
• Online resources: OCR website, Teach Cambridge, skills guides, past papers.

Administration

• Available in England; separate rules for Wales/Northern Ireland.
• Retakes allowed; Practical Endorsement can be carried forward.
• Private candidates must arrange practical assessment with an approved centre.

Appendices & Data

• Includes data sheet, periodic table, mathematical requirements, health and safety guidance, and practical endorsement details.