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Course: IAL Edexcel Linear (Chemistry)
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Curriculum

IAL Edexcel Linear (Chemistry)

Unit 1. Structure, Bonding and Introduction to Organic Chemistry

0/52 Dr Dabour Hub Science Diagram and Course Material

Unit 2. Energetics, Group Chemistry, Halogenoalkanes and Alcohols

0/68 Dr Dabour Hub Science Diagram and Course Material

Unit 3. Practical Skills in Chemistry I

0/13 Dr Dabour Hub Science Diagram and Course Material

Unit 4. Rates, Equilibria and Further Organic Chemistry

0/71 Dr Dabour Hub Science Diagram and Course Material

Unit 5. Transition Metals and Organic Nitrogen Chemistry

0/57 Dr Dabour Hub Science Diagram and Course Material

Unit 6. Practical Skills in Chemistry II

0/17 Dr Dabour Hub Science Diagram and Course Material
Quiz

Alkanes – Check yourself

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Practise 1.10 Alkanes with 8 multiple-choice questions.

Review the lesson and worked explanations before starting.

  • Questions count: 8
  • Passing grade: B+
  • Time limit: 10 minutes
Start Quiz
1.
What condition is needed for methane to react with chlorine?
Nickel catalyst
UV light
Concentrated H2SO4
Aqueous NaOH
2.
Which is a termination step?
Cl2 → 2Cl•
Cl• + CH4 → HCl + •CH3
•CH3 + Cl2 → CH3Cl + Cl•
2•CH3 → C2H6
3.
Why are alkanes generally unreactive?
They contain strong, almost non-polar bonds
They are ionic
They contain π bonds
They have high boiling points
4.
Which product forms in incomplete combustion but not in complete combustion?
Water
Carbon dioxide
Carbon monoxide
Nitrogen
5.
C12H26 → C6H14 + 2X. What is X?
C3H8
C6H12
C2H4
C3H6
6.
Which statement best describes Initiation?
Burning of a fuel in a limited supply of oxygen, producing CO and/or carbon (soot) and water.
A saturated hydrocarbon containing only C–C and C–H single bonds, general formula CnH2n+2.
The step of a radical mechanism in which radicals are first formed, usually by UV light breaking a halogen molecule.
Steps in which two radicals combine to form a stable molecule, removing radicals from the chain.
7.
Which statement best describes Termination?
Describes a molecule with no carbon–carbon double or triple bonds.
Steps in which two radicals combine to form a stable molecule, removing radicals from the chain.
Steps in which a radical reacts with a molecule to give a product and a new radical, so the chain continues.
A species with an unpaired electron, shown with a dot, e.g. Cl•.
8.
Which statement best describes Propagation?
Breaking of a covalent bond in which each atom keeps one electron of the shared pair, forming two radicals.
The step of a radical mechanism in which radicals are first formed, usually by UV light breaking a halogen molecule.
Describes a molecule with no carbon–carbon double or triple bonds.
Steps in which a radical reacts with a molecule to give a product and a new radical, so the chain continues.
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Part of Unit 1. Structure, Bonding and Introduction to Organic Chemistry — see every lesson and quiz in this unit.
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