Redox

• Define oxidisation and reduction

  • oxidisation is loss of electrons
  • Reduction is gain of electrons
• define oxidising and reducing agents

  • Oxidising agents accept electrons and gets reduced
  • Reducing agents donate electrons and gets oxidised
• Oxidising states

  Hydrogen: +1

  Oxygen: -2

  Halogens: -1

  Group 1: +1
• elements have an oxidising state of 0

  
• Redox half equations example