OCRAS Level65 resources

OCR AS Level Chemistry B (Salters) Past Papers

Download OCR AS Level Chemistry B Salters (H033) past papers. Foundations of Chemistry and Chemistry in Depth components. Context-led approach. 7 resources.

📅June 2016 – present📄65 resources available✅Free to download

Papers Overview Paper Structure Key Info Key Topics Command Words Grade Boundaries Revision Tips Try AI Tutor ✦

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June 2023

9 files

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Chemistry B (Salters) – Modified Papers

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Chemistry B (Salters) – Question paper – Chemistry in depth

Question Paper

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Chemistry B (Salters) – Question paper – Chemistry in depth post exam correction

Question Paper

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Chemistry B (Salters) – Question paper – Foundations of chemistry

Question Paper

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✅

Chemistry B (Salters) – Mark scheme – Chemistry in depth

Mark Scheme

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Chemistry B (Salters) – Mark scheme – Foundations of Chemistry

Mark Scheme

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Chemistry B (Salters) – Modified papers

Modified Paper

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Chemistry B (Salters) – Examiners’ report – Chemistry in depth

Examiner Report

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Chemistry B (Salters) – Examiners’ report – Foundations of chemistry

Examiner Report

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June 2022

8 files

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Chemistry B (Salters) – Question paper – Chemistry in depth

Question Paper

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📄

Chemistry B (Salters) – Question paper – Chemistry in depth post exam correction

Question Paper

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📄

Chemistry B (Salters) – Question paper – Foundations of chemistry

Question Paper

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✅

Chemistry B (Salters) – Mark scheme – Foundations of Chemistry

Mark Scheme

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📋

Chemistry B (Salters) – Modified papers

Modified Paper

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✅

Chemistry B (Salters) – Mark scheme – Chemistry in depth

Mark Scheme

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📊

Chemistry B (Salters) – Examiners’ report – Chemistry in depth

Examiner Report

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📊

Chemistry B (Salters) – Examiners’ report – Foundations of chemistry

Examiner Report

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November 2021

6 files

📦

Chemistry B (Salters) – Data booklet

Additional Resources

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Chemistry B (Salters) – Question paper – Chemistry in depth

Question Paper

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📄

Chemistry B (Salters) – Question paper – Foundations of chemistry

Question Paper

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✅

Chemistry B (Salters) – Mark scheme – Foundations of chemistry

Mark Scheme

Download

✅

Chemistry B (Salters) – Mark scheme – Chemistry in depth

Mark Scheme

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📦

Chemistry B (Salters) – Data booklet

Additional Resources

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November 2020

6 files

📦

Chemistry B (Salters) – Data booklet

Additional Resources

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📄

Chemistry B (Salters) – Question paper – Chemistry in depth

Question Paper

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📄

Chemistry B (Salters) – Question paper – Foundations of chemistry

Question Paper

Download

✅

Chemistry B (Salters) – Mark scheme – Foundations of chemistry

Mark Scheme

Download

✅

Chemistry B (Salters) – Mark scheme – Chemistry in depth

Mark Scheme

Download

📦

Chemistry B (Salters) – Data booklet

Additional Resources

Download

June 2019

8 files

📄

Chemistry B (Salters) – Question paper – Chemistry in depth

Question Paper

Download

📄

Chemistry B (Salters) – Question paper – Foundations of chemistry

Question Paper

Download

✅

Chemistry B (Salters) – Mark scheme – Foundations of Chemistry

Mark Scheme

Download

📋

Chemistry B (Salters) – Modified papers

Modified Paper

Download

✅

Chemistry B (Salters) – Mark scheme – Chemistry in depth

Mark Scheme

Download

📊

Chemistry B (Salters) – Examiners’ report – Chemistry in depth

Examiner Report

Download

📊

Chemistry B (Salters) – Examiners’ report – Foundations of chemistry

Examiner Report

Download

🗂️

Chemistry B (Salters) – Data Sheet

Data Sheet

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June 2018

10 files

📋

Chemistry B (Salters) – Modified papers

Modified Paper

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🗂️

Chemistry B (Salters) – Data sheet

Data Sheet

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📄

Chemistry B (Salters) – Question paper – Chemistry in depth

Question Paper

Download

📄

Chemistry B (Salters) – Question paper – Foundations of chemistry

Question Paper

Download

✅

Chemistry B (Salters) – Mark scheme – Foundations of chemistry

Mark Scheme

Download

📋

Chemistry B (Salters) – Modified papers

Modified Paper

Download

✅

Chemistry B (Salters) – Mark scheme – Chemistry in depth

Mark Scheme

Download

📊

Chemistry B (Salters) – Examiners’ report – Chemistry in depth

Examiner Report

Download

📊

Chemistry B (Salters) – Examiners’ report – Foundations of chemistry

Examiner Report

Download

🗂️

Chemistry B (Salters) – Data sheet

Data Sheet

Download

June 2017

9 files

📋

Chemistry B (Salters) – Modified papers

Modified Paper

Download

📋

Chemistry B (Salters) – Modified papers

Modified Paper

Download

🗂️

Chemistry B (Salters) – Data sheet

Data Sheet

Download

📄

Chemistry B (Salters) – Question paper – Foundations of chemistry data booklet

Question Paper

Download

📄

Chemistry B (Salters) – Question paper – Foundations of chemistry

Question Paper

Download

📄

Chemistry B (Salters) – Question paper – Chemistry in depth

Question Paper

Download

✅

Chemistry B (Salters) – Mark scheme – Foundations of chemistry

Mark Scheme

Download

✅

Chemistry B (Salters) – Mark scheme – Chemistry in depth

Mark Scheme

Download

📊

Chemistry B (Salters) – Examiners’ report

Examiner Report

Download

June 2016

6 files

📋

Chemistry B (Salters) – Modified papers

Modified Paper

Download

📄

Chemistry B (Salters) – Question paper – Foundations of chemistry

Question Paper

Download

📄

Chemistry B (Salters) – Question paper – Chemistry in depth

Question Paper

Download

✅

Chemistry B (Salters) – Mark scheme – Foundations of chemistry

Mark Scheme

Download

📋

Chemistry B (Salters) – Modified papers

Modified Paper

Download

✅

Chemistry B (Salters) – Mark scheme – Chemistry in depth

Mark Scheme

Download

No date

3 files

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Chemistry B (Salters) – Data sheet

Data Sheet

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📝

Chemistry B (Salters) – Chemistry in depth

Sample Assessment Materials

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📝

Chemistry B (Salters) – Foundations of chemistry

Sample Assessment Materials

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Salters' Real-World Contexts as Entry Points into AS Chemistry Concepts

OCR AS Level Chemistry B (Salters) (H033) presents chemical concepts through real-world storylines and industrial contexts — a curriculum approach developed by the Salters Institute that helps students understand why chemistry matters and how it underpins technology, medicine, environment, and industry. The qualification assesses the same core chemical principles as Chemistry A but in a context-rich, application-first framing. Paper 1: Foundations of Chemistry (H033/01, 1 hour 30 minutes, 70 marks) introduces chemical concepts through Salters storylines such as atmospheric chemistry, the chemistry of food, and pharmaceutical development. Content includes atomic structure, the mass spectrometer and isotopes, electron configurations and ionisation energies, chemical bonding (ionic, covalent, dative covalent, and metallic), molecular shapes (VSEPR), intermolecular forces, the mole concept and stoichiometry, and an introduction to organic chemistry (hydrocarbons, functional groups, and nomenclature). Questions are contextualised within real scenarios, requiring students to extract relevant chemical principles and apply them. Paper 2: Chemistry in Depth (H033/02, 1 hour 30 minutes, 70 marks) develops the content further, using contexts such as materials science, energy storage, and water treatment. Topics include acid-base chemistry (pH calculations, buffer solutions at introductory level), redox chemistry, the periodic table (groups and periods, Group 2 and halogen chemistry), organic reaction pathways, and thermochemistry (Hess's Law, bond enthalpy calculations, and an introduction to entropy and Gibbs free energy). Practical skills — including hazard assessment, uncertainty quantification, and evaluating experimental design — are integrated throughout both papers.

Exam Paper Structure

Paper 1Calculator ✓

Foundations of Chemistry

⏱ 1 hour 30 minutes🎯 70 marks📊 50%% of grade

Atomic structure and isotopesBonding and molecular shapeThe mole and stoichiometryIntroduction to organic chemistrySalters contexts: atmosphere, food, pharmaceuticals

Paper 2Calculator ✓

Chemistry in Depth

⏱ 1 hour 30 minutes🎯 70 marks📊 50%% of grade

Acid-base chemistry and pHRedox reactionsGroup 2 and halogensThermochemistry and entropyPractical skills and experimental evaluation

Key Information

Exam Board	OCR (Salters)
Specification Code	H033
Qualification	AS Level
Grading Scale	A–E
Assessment Type	2 written papers, context-led
Number Of Papers	2
Exam Duration	1 hour 30 minutes per paper
Total Marks	140 (70 + 70)
Calculator Status	Calculator allowed
Available Sessions	June 2016 – present
Total Resources	7

Key Topics in Chemistry B (Salters)

Topics you need to know

Context-based chemical problem solvingMole calculations and stoichiometryBonding, structure, and intermolecular forcesAcid-base definitions and pH calculationsBond enthalpy and Hess's LawGroup 2 and halogen periodic trendsOrganic functional groups and reactions

Exam Command Words

Command word	What the examiner expects
In the context of	Apply your chemical knowledge specifically to the scenario described
Calculate	Show all steps of the calculation, including mole conversions and units
Explain	Give a chemical mechanism or principle to account for an observation
Suggest	Propose a plausible chemical reason that applies the specification content to an unfamiliar situation

Typical Grade Boundaries

Grade	Approximate mark needed
A	68–83%
B	56–67%
C	44–55%
D	32–43%
E	20–31%

⚠️ OCR AS Chemistry B (Salters) grade boundaries vary by session.

Extracting Core Chemistry from Salters Contexts and Practising Mechanism Drawing

The defining skill for Salters chemistry exams is context navigation: each question places chemical concepts within a real-world scenario, and students who misread the context tend to answer in generalities rather than addressing the specific situation described. Read question stems carefully, identify the chemical system being described (a reaction, a material, a process), and frame your answer within that specific context rather than giving a textbook definition. Acid-base questions in Chemistry in Depth require precision about the Brønsted-Lowry definitions. An acid is a proton donor; a base is a proton acceptor. In a conjugate acid-base pair, the acid and its conjugate base differ by a single proton: if CH₃COOH is the acid, CH₃COO⁻ is its conjugate base. For pH calculations: for strong acids, pH = −log[H⁺]; for weak acids, use pH = −log(√(Ka × C)) where Ka is the dissociation constant and C is the initial concentration. The approximation assumes that dissociation is small relative to the initial concentration — state this assumption explicitly when making it. For enthalpy calculations using bond enthalpies: sum the energies of all bonds broken (always positive, as bond breaking is endothermic) and subtract the sum of all bonds formed (always positive in the calculation, representing energy released). The sign of ΔH is positive if more energy is absorbed than released and negative if more energy is released than absorbed. Students frequently confuse the sign convention — draw a simple energy diagram to keep the direction clear before performing arithmetic.

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OCR AS Level Chemistry B (Salters) Past Papers

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June 2023

June 2022

November 2021

November 2020

June 2019

June 2018

June 2017

June 2016

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Salters' Real-World Contexts as Entry Points into AS Chemistry Concepts

Exam Paper Structure

Key Information

Key Topics in Chemistry B (Salters)

Exam Command Words

Typical Grade Boundaries

Extracting Core Chemistry from Salters Contexts and Practising Mechanism Drawing

More OCR AS Level Subjects

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