Question

2g of ferrous sulphate crystals are heated in a dry boiling tube
Name the type of chemical reaction taking place.
Write the chemical equation for the reaction.​

Answer 1

Explanation:

thermal decomposition

fe2so4------>fe2O3+so3+so4

Answer 2

Answer:

(i) Before heating, it is pale green. 

After heating, it is brown or reddish brown.

TWo observations are :

(a) Change in state and colour.

(b) Evolution of gas.

(ii) Decomposition reaction.

(iii) 2FeSO4(s) +Heat → Fe2O3(s) + SO2(g) + SO3(g)