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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.

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:
  • 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

AS2.5 Help Sheets.pdf
click to download
Chem 2.5 Powerpoint.ppt
click to download
AS2.5 Spider Diagram Summary.docx
click to download
Graphic Organisers.doc
Organic Graphic Organiser for notes
AS91165 Organic NZQA 2013 answers.pptx
click to download
Allotropes.pdf
click to download

worksheets

Intro to Organic.doc
click to download
Alkanes.doc
click to download
Alkenes 1.doc
click to download
Alkenes 2.doc
click to download
Alcohols.doc
click to download
Acids Esters.doc
click to download
Unknowns.doc
click to download

practice papers

Chem 2.5 Questions 12.doc
click to download
Chem 2.5 Questions 13.docx
click to download
Chemistry 2.5 Questions 14.docx
2014 Prelim Paper
Chemistry 2.5 ANSWERS PRELIMS 2015.docx
click to download

videos

answers for worksheets

Intro to Organic Answers.doc
click to download
Alkanes Answers.doc
click to download
Alkenes 1 Answers.doc
click to download
Alkenes 2 Answers.doc
click to download
Alcohols Answers.doc
click to download
Acids Esters Answers.doc
click to download
Unknowns Answers.doc
click to download

Answers for papers

Chem 2.5 Assess sched 12.doc
click to download
Chem 2.5 Assess sched 13.docx
click to download
Chemistry 2.5 Assess sched 14.docx
click to download
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