Four gases are released at the same time at one end of a long tube at the same temperature. Which gas diffuses along the tube fastest?
← IGCSE subjects
IGCSE Chemistry0620
2 papers120 marks2 h
What we predict comes up
From the syllabus weighting and how the papers are usually set. The papers below follow it.
- Organic chemistry14%Organic chemistry is the largest single area: homologous series, cracking, ethanol, esters and polymers almost always fill a full question.
- Stoichiometry13%Mole calculations (gas volumes, concentrations, limiting reactant, yield and purity) are a fixture of Paper 4 and the multiple choice.
- States of matter, atoms and bonding12%Atomic structure, isotopes and ionic, covalent and metallic bonding open almost every Paper 4 and fill several multiple choice items.
- Chemical reactions12%Rates from a gas volume graph, equilibrium in the Haber or Contact process and redox by oxidation number are tested each sitting.
Paper 2: Multiple Choice (Extended)
45 min · 40 marks · Calculator allowed
- There are forty questions on this paper. Answer all questions.
- For each question there are four possible answers, A, B, C and D. Choose the one you consider correct.
- Each correct answer will score one mark. There is no penalty for a wrong answer.
- Relative atomic masses () are given in each question where needed. The volume of one mole of any gas is 24 dm³ at room temperature and pressure (r.t.p.).
- You may use a calculator.
Answer or mark a question and your score adds up here.
Answer all questions40 marks
Which particle contains 11 protons, 12 neutrons and 10 electrons?
Which substance has a giant covalent structure?
37 more questions
Every paper, every question, the answers and the mark scheme. Free with a Knomi account.
Not included: Paper 6 (Alternative to Practical) and the Core tier papers (Paper 1 multiple choice and Paper 3 theory) are not included; this sitting is the Extended route, Papers 2 and 4.