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Describe the preparation of potassium d...

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

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

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

Give the preparation of potassium permanganate from pyrolusite ore.

(a) Describe the preparation of potassium dichromate from chromite ore: (b) How does the acidified solution of potassium permanganate react with (i) oxalic acid (ii) iron (II) ions.

Potassium dichromate is used

Potassium dichromate is used