AS2.5 Organic (External)

This externally assessed standard is worth 5 credits and is essential for
understanding at Level 3.
You will cover a large amount of content and the teaching component will take
approximately 10 weeks of class time.
The following is a comprehensive list of all the key areas that you must cover for AS2.5.
understanding at Level 3.
You will cover a large amount of content and the teaching component will take
approximately 10 weeks of class time.
The following is a comprehensive list of all the key areas that you must cover for AS2.5.
what you need to know!
Selected organic compounds are limited to: alkanes, alkenes, alkynes, haloalkanes, primary amines, alcohols, and carboxylic acids.
Properties are limited to:
Properties are limited to:
- constitutional and geometric (cis and trans) isomers
- classification of alcohols and haloalkanes as primary, secondary or tertiary
- solubility, melting and boiling points
- chemical reactions.
Chemical reactions are limited to:
- addition reactions of alkenes with H2/Pt, Cl2, Br2, H2O/H+ (conc. H2SO4/H2O) and hydrogen halides (including identification of major and minor products on addition to asymmetric alkenes), polymerisation
- substitution reactions of:
- alkanes with halogens (limited to monosubstitution)
- alcohols with hydrogen halides, PCl3, PCl5, SOCl2
- haloalkanes with ammonia and aqueous potassium hydroxide
- oxidation of:
- primary alcohols to form carboxylic acids with MnO4-/H+ or Cr2O72-/H+
- alkenes with MnO4–
- elimination of (including identification of major and minor products for asymmetric reactants):
- water from alcohols
- hydrogen halides from haloalkanes
- acid–base reactions of carboxylic acids and amines.
resources
worksheets
practice papers
videos
answers for worksheets
Answers for papers
Alkanes
Alcohols
Isomerism
Naming Compounds
Elimination Reactions
Alkenes
Classifying Alcohols
Amines
Naming Isomers
Oxidation Reactions
Alkynes
Rules of Reactions
Carboxylic Acids
Addition Reactions
Reaction Schemes
Haloalkanes
Polymers
Diols
Substitution Reactions
Identifying Organic Compunds