Chemistry GCSE OCR - Specimen 2016 - Paper 4

Topics Assessed in Paper 4H

Topic 4 - Predicting and Indentifying Reactions and Products
Topic 5 - Monitoring and Controlling Chemical Reactions 
Topic 6 - Global Challenges
Topic 7 - Practical Skills
Section A - Multiple choice questions (1-15)
Section B - Standard questions (16-26)

Mark Scheme

Questions By Topic

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Questions by Topic

Q16 Monitoring & Controlling Chemical Reactions

Keywords: rate of reaction, catalyst, concentration.

Q17 Predicting & Identifying Reactions & Products

Keywords: group 7, halogens, molecular formula, reactivity, electronic structure..

Q18 Predicting & Identifying Reactions & Products

Keywords: tests for gases, tests for anions, tests for cations.

Q19 Monitoring & Controlling Chemical Reactions

Keywords: titration, calculating titrate, calculating concentration.

Q20 Global Challenges

Keywords: addition polymer, crude oil, fractional distillation, display formula.

Q21 Monitoring & Controlling Chemical Reactions

Keywords: reversible reaction, dynamic equilibrium, percentage yield.

Q22 Global Challenges

Keywords: fertiliser, the haber process, the contact process, rate of reaction, ammonium, calculating mass.

Q23 Global Challenges

Keywords: carbon dioxide, greenhouse gases, fossil fuels, climate change.

Q24 Global Challenges

Keywords: corrosion.

Q25 Global Challenges

Keywords: electrolysis, extracting metals, aluminium oxide, copper, anode, cathode.

Q26 Global Challenges

Keywords: rust, iron, balancing equations.

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