Question

Two grams 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 balanced chemical equation for the reaction and name the products formed.

Answer 1

Answer:

i) 1. fumes are evolved

2. colour of substance changes

ii) It is decomposition Reaction.

iii)2Feso4===>Fe2o3+So2+So3

product names are Ferric oxide,sulphur dioxide, sulphur trioxide

Answer 2

Answer:

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)