What is the action of heat on copper sulphate crystals?

What is the action of heat on orthoboric acid ?

What is meant by water of Crystallisation ? How do you show that copper sulphate crystal contains water of crystallisation ?

Explain metal displacement redox reaction of copper sulphate solution and zinc metal.

What is the co-ordination entity formed when excess of aqueous KCN is added to an aqueous solution of copper sulphate ? Why is that no precipitate of copper sulphide is obtained when H_2 S(g) is passed through this solution ?

Write the balanced chemical equation for each of the following. On heating green - coloured ferrous sulphate crystals a reddish - brown solid is left and gases having a smell of burning sulphur are released.

Why does the colour of copper sulphate solution change when an iron nail is dipped in it ?

Why does the colour of copper sulphate solution change when an iron nail is dipped in it ?

Why does the colour of copper sulphate solution change when an iron nail is dipped in it ? Write chemical equation for the reaction involved.

2g of ferrous sulphate crystals are heated in a boiling tube. (i) State the colour of ferrous sulphate crystals both before heating and after heating. (ii) Name the gases produced during heating . (iii) Write the chemical equation for the reaction .