Give the preparation of Potassium Permanganate from Pyrolusite ore.

Give preparation of Potassium Permanganate (KMnO_4) .

Give the preparation Nylon 6

Give the preparation of Telfon.

Give the preparation of chlorine.

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

Give the preparation Melamine

Describe the preparation of potassium permanganate. How does the acidified permanganate solution react with (i) iron(II) ions Write the ionic equations for the reactions