Author Topic: chem doubt  (Read 834 times)

Offline ruby92

  • SF Citizen
  • ***
  • Posts: 208
  • Reputation: 258
chem doubt
« on: May 09, 2010, 07:10:20 pm »
can someone please explain disproportionation.
how do we identify this
eg m/j 2008 paper 2 chemistry 5 d??? ??? ???

Offline Saladin

  • The Samurai
  • Honorary Member
  • SF V.I.P
  • *****
  • Posts: 6530
  • Reputation: 59719
  • Gender: Male
  • I believe in those who believe in me
    • Student Tech
Re: chem doubt
« Reply #1 on: May 09, 2010, 07:11:42 pm »
CIE or Edexcel?

nid404

  • Guest
Re: chem doubt
« Reply #2 on: May 09, 2010, 07:13:17 pm »
 A disproportionation reaction is one in which a single substance is both oxidised and reduced.

Offline Saladin

  • The Samurai
  • Honorary Member
  • SF V.I.P
  • *****
  • Posts: 6530
  • Reputation: 59719
  • Gender: Male
  • I believe in those who believe in me
    • Student Tech
Re: chem doubt
« Reply #3 on: May 09, 2010, 07:16:54 pm »
A disproportionation reaction is one in which a single substance is both oxidised and reduced.

Precisely.

This is an example:


In other words, it is when, one element exists in different oxidation states in the products of the reaction!