A small amount of ferrous sulphate is heated in hard glass tube.
(a) Write the chemical equation
(b) What type of reaction is taking place.

Q. 2g of ferrous sulphate crystals are heated in a dry boiling tube.
(i) List any two observations.
(ii) Name the type of chemical reaction taking place.
(iii) Write the chemical equation for the reaction.

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

Q. Dilute solution of ammonium hydroxide is added to aqueous solution of ferrous sulphate and ferrous hydroxide is formed. What type of reaction is this? Write chemical equation.

Q. A small amount of $Mn{O}_2$ is added to $H_{2}O$ taken in a test tube.
(a) Suggest an experiment to identify the gas liberated.
(b) Write the chemical equation of the reaction taking place.
(c) What is the role of $Mn{O}_2$ in this chemical reaction?

Q. While demonstrating decomposition reaction in laboratory the teacher heated ferrous sulphate crystals in a hard glass dry boiling tube.
(i) What change in the colour of ferrous sulphate crystals you will observe?
(ii) What type of smell does the gases coming out of the boiling tube would have?