Question

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.

Answer 1

Answer:

Before heating , it is pale green

After heating , it is brown or reddish brown

1. Two observations are:-

     (a) change in state and colour

      (b) evolution of gas

     2. Decomposition reaction

     3. 2FeSO4(s) + Heat-------- F2SO3(s) + SO2(g) + SO3(g)

I hope this is helpful for you................