shaalaa.com
S

Solution - Some Important Compounds of Transition Elements - Oxides and Oxoanions of Metals

Account
User


Login
Register


      Forgot password?
Share
Notifications

View all notifications
Books Shortlist
Your shortlist is empty

Question

Describe the preparation of potassium dichromate from iron chromite ore. What is the effect of increasing pH on a solution of potassium dichromate?

Solution

You need to to view the solution
Is there an error in this question or solution?

Similar questions

Complete the following equations:

Cr2O72- + 14H+ + 6I →

view solution

Complete the following chemical equation

Cr2O72- + 3Sn2+ + 14H+

view solution

Complete the following equation :

MnO4- + 8H+ + 5e- →

view solution

Describe the preparation of potassium dichromate from iron chromite ore. What is the effect of increasing pH on a solution of potassium dichromate?

view solution

For M2+/M and M3+/M2+ systems, the `E^theta` values for some metals are as follows:

Cr2+/Cr −0.9V

Cr3/Cr2+ −0.4 V

Mn2+/Mn −1.2V

Mn3+ /Mn2+ +1.5 V

Fe2+ /Fe −0.4V

Fe3+/Fe2+ +0.8 V

Use this data to comment upon:

(i) The stability of Fe3+ in acid solution as compared to that of Cr3+ or Mn3+ and

(ii) The ease with which iron can be oxidised as compared to a similar process for either chromium or manganese metal.

view solution

Content BooksVIEW ALL [1]

Reference Material

S