Colour of ferrous ion is

Colour of ferrous sulphate crystals

Colour of ferrous salts.

What is the colour of ferrous sulphate crystals? How does this colour change after heating?

A student performed the experiment of heating ferrous sulphate crystals in a boiling tube. He smell fumes of a pungent gas saw colours of ferrous sulphate disappear Why does the colour of crystals disappear?

(a) What is the colour of ferrous sulphate crystals ? How does this colour change after heating? (b) Name the product formed on strongly heating ferrous sulphate crystals. What type of chemical reaction occurs in this change?

For reducing 1 mole of ferrous ions to iron the number of faradays of electricity required will be

The number of unpaired electrons in ferrous ion is