Chemistry <br />pbl<br />MADE BY:<br />DHRUV KAPUR <br />XI-C<br />
Topic<br />*<br />PREPARATION & PROPERTIES OF HYDROGEN PEROXIDE<br />
Before discussing the PREPARATION & PROPERTIES of Hydrogen Peroxide…<br />Let’s Know …<br />What is H2O2<br />Hydrogen per...
PREPARATION OF HYDROGEN  PEROXIDE<br />Preparation of hydrogen peroxide IS DONE IN 3 WAYS...<br />P<br />R<br />E<br />P<b...
METHOD 1… <br />Acidifying Barium Peroxide<br />Acidifying barium peroxide and removing excess water by evaporation under ...
METHOD 2… <br />Hydrolysis  of  Peroxodisulphate <br />Peroxodisulphate ,obtained by electrolytic oxidation of acidified s...
METHOD 3… <br />   Auto oxidation of  2-alklylanthrquinols<br />Industrially it is prepared by the auto –oxidation of 2-al...
After extracting hydrogen peroxide…NOW its time  to discuss<br />PROPERTIES OF HYDROGEN PEROXIDE<br />P<br />H<br />Y<br /...
Chemical Properties of Hydrogen Peroxide<br />Chemical Reactions of hydrogen peroxide<br />Some of the more significant re...
MADE BY:<br />DHRUV KAPUR<br />XI-C<br />ROLL NO: 8<br />
Upcoming SlideShare
Loading in …5
×

Chemistry pbl

769
-1

Published on

fdghfjhkljl;l;'

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

  • Be the first to like this

No Downloads
Views
Total Views
769
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
10
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Chemistry pbl

  1. 1. Chemistry <br />pbl<br />MADE BY:<br />DHRUV KAPUR <br />XI-C<br />
  2. 2. Topic<br />*<br />PREPARATION & PROPERTIES OF HYDROGEN PEROXIDE<br />
  3. 3. Before discussing the PREPARATION & PROPERTIES of Hydrogen Peroxide…<br />Let’s Know …<br />What is H2O2<br />Hydrogen peroxide is a combination of hydrogen and oxygen. <br />Its chemical description is H2O2. In high concentrations, it can be<br /> unstable and even poisonous. In lower concentrations, such as the<br /> types found in many homes, it works well as a <br />disinfectant and antiseptic.<br />Uses of H2O2……<br />1) In homes, clinics and schools, it has frequently used to cleanse cuts, abrasions<br /> and other minor injuries.<br />2)Hydrogen peroxide has many other uses as well. When diluted, it can be used to<br /> clean and whiten teeth, and it can be used as a gargle or mouthwash to kill <br />germs in the mouth.<br />NOTE:-“Hydrogen peroxide should never be swallowed. The residue from it <br />should be rinsed from the mouth after use. ”<br />
  4. 4. PREPARATION OF HYDROGEN PEROXIDE<br />Preparation of hydrogen peroxide IS DONE IN 3 WAYS...<br />P<br />R<br />E<br />P<br />A<br />R<br />A<br />T<br />I<br />O<br />N<br />1) Acidifying barium peroxide<br />2) Hydrolysis of Peroxodisulphate<br />3) Auto oxidation of <br /> 2-alklylanthrquinols<br />
  5. 5. METHOD 1… <br />Acidifying Barium Peroxide<br />Acidifying barium peroxide and removing excess water by evaporation under <br />Reduced pressure gives hydrogen peroxide<br />BaO2.8H2O(s) + H2SO4(aq)--->BaSO4(s) + H2O2(aq) + 8H2O(l)<br />We get Hydrogen Peroxide in aqueous state. <br />
  6. 6. METHOD 2… <br />Hydrolysis of Peroxodisulphate <br />Peroxodisulphate ,obtained by electrolytic oxidation of acidified sulphate<br />Solutions at high current density ,on hydrolysis yields hydrogen peroxide.<br />Electrolysis<br /> 2HSO4-(aq)------------> HO3SOOSO3H(aq)<br />Hydrolysis<br /> HO3SOOSO3H(aq)---------->2HSO4-(aq) + 2H+(aq) + H2O2(aq<br />
  7. 7. METHOD 3… <br /> Auto oxidation of 2-alklylanthrquinols<br />Industrially it is prepared by the auto –oxidation of 2-alklylanthrquinols<br />
  8. 8. After extracting hydrogen peroxide…NOW its time to discuss<br />PROPERTIES OF HYDROGEN PEROXIDE<br />P<br />H<br />Y<br />S<br />I<br />C<br />A<br />L <br />P<br />R<br />O<br />P<br />E<br />R<br />T<br />I<br />E<br />S<br />
  9. 9. Chemical Properties of Hydrogen Peroxide<br />Chemical Reactions of hydrogen peroxide<br />Some of the more significant reactions of hydrogen peroxide are listed below.<br />• Decomposition 2H2O2 -> 2H2O + O2<br />• Molecular addition H2O2 + Y -> YH2O2<br />• Substitution H2O2 + RX -> ROOH + HX<br />• Oxidation H2O2 + W -> WO + H2O<br />• Reduction H2O2 + Z -> Z H2 + O2<br />
  10. 10. MADE BY:<br />DHRUV KAPUR<br />XI-C<br />ROLL NO: 8<br />
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×