Describe the preparation of potassium permanganate.

(a) Describe the preparation of potassium dichromate.

Give the preparation of potassium permanganate from pyrolusite ore.

Explain the preparation of potassium permanganate from pyrolusite

(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.

Explain the preparation of potassium permanganate from MnO_(2) Write the balanced chemical equations for the reactions involved.

Describe the preparation of potassium dichromate from iron chromite ore.

Describe the preparation of potassium dichromate from iron chromite ore.