Edexcel IGCSE Chemistry Chemistry Paper 2 January 2021 mark scheme 4CH1/2C
Practise the past exam questions by topic
Isotopes & relative atomic mass20 Qs
Subatomic particles20 Qs
Atmospheric pollutants24 Qs
Atoms, elements & compounds18 Qs
Group 0: the noble gases14 Qs
Tests for gases29 Qs
Composition & evolution of the atmosphere18 Qs
Carboxylic acids16 Qs
Esters20 Qs
Factors affecting the rate of reaction16 Qs
Conservation of mass & balanced equations76 Qs
Group 1: the alkali metals16 Qs
PH scale & neutralisation26 Qs
Electrolysis17 Qs
Electrolysis of molten ionic compounds6 Qs
Extraction of metals & reduction9 Qs
Half equations at electrodes16 Qs
Oxidation & reduction in terms of electrons36 Qs
Properties of metals & alloys16 Qs
Reaction profiles16 Qs
Using electrolysis to extract metals6 Qs
Amounts of substance in equations29 Qs
Concentration of solutions22 Qs
Making soluble salts22 Qs
Percentage yield13 Qs
Cracking & alkenes14 Qs
Fractional distillation & petrochemicals18 Qs
Volumes of gases21 Qs
+24 more
7 questions
- Q1 - 5 marks - Isotopes and relative atomic mass, Subatomic particles
- Q2 - 5 marks - Atmospheric pollutants, Atoms, elements and compounds, Group 0: the noble gases, Tests for gases, The composition and evolution of the atmosphere
- Q3 - 8 marks - Carboxylic acids, Esters, Factors affecting the rate of reaction
- Q4 - 9 marks - Conservation of mass and balanced equations, Group 1: the alkali metals, The pH scale and neutralisation
- Q5 - 14 marks - Electrolysis, Electrolysis of molten ionic compounds, Extraction of metals and reduction, Half equations at electrodes, Oxidation and reduction in terms of electrons, Properties of metals and alloys, Reaction profiles, Using electrolysis to extract metals
- Q6 - 15 marks - Amounts of substance in equations, Concentration of solutions, Making soluble salts, Percentage yield
- Q7 - 14 marks - Atmospheric pollutants, Cracking and alkenes, Fractional distillation and petrochemicals, Volumes of gases
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