Your SlideShare is downloading. ×
Chemistry ace
Chemistry ace
Chemistry ace
Chemistry ace
Chemistry ace
Chemistry ace
Chemistry ace
Chemistry ace
Chemistry ace
Chemistry ace
Chemistry ace
Chemistry ace
Chemistry ace
Chemistry ace
Chemistry ace
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Chemistry ace

179

Published on

Published in: Technology, Business
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
179
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
4
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Mervin Lim 3B2(12)CHEMISTRY ACEOXIDATION AND REDUCTIONREDOX
  • 2. What is a redox?A redox is concerned with net electron flow to and from a defined centre during a chemical reaction.
  • 3. Defined Centres Atom Atomic ion Molecule Molecular ion Multifunctional molecule
  • 4. What is a redox? RedoxReduction Oxidation
  • 5. Aspects Redox Oxidation ReductionOxidizing Agent Reducing AgentLose electrons Gain electrons
  • 6. How to memorise? “LEO says GER”Lose Electrons is Oxidation Gain Electrons is Reduction
  • 7. Sum up1. Oxidation  loss of electrons2. Reduction  gain of electrons3. Oxidizing agent  Gains electrons during reaction and therefore reduced reaction4. Reducing agent  Loses electrons during reaction and is therefore oxidized during reaction5. Oxidized form  Form of molecule lacking electrons6. Reduced form  Form of molecule having electrons
  • 8. How can oxidation of a defined centre be changed? 1) Single Electron Transfer (SET) -To the defined centre (reduction) or from the defined centre (oxidation) E.g. Iron
  • 9. How can oxidation of a defined centre be changed? 2) Reversal of bond polarization at defined centres E.g. Carbon
  • 10. 3 Types of Redox Reaction1st :Gain of electrons is reduction,Loss of electrons is oxidation
  • 11. 3 Types of Redox Reaction2nd :Gain of hydrogen* is reduction,Loss of hydrogen* is oxidation*or other electro positive element
  • 12. 3 Types of Redox Reaction2nd :Gain of hydrogen* is reduction,Loss of hydrogen* is oxidation*or other electro positive element
  • 13. 3 Types of Redox Reaction3rd :Loss of oxygen* is reduction,Gain of oxygen* is oxidation*or other electro positive element
  • 14. Classification of Redox Types Single Electron Transfer Electron Donor Agent Hydride Complex Agent Lewis Acid Hydride Donor Agent Hydrogen Agent Dissolved Metal Agent Miscellaneous Agent
  • 15. That is all Thank you

×