Question

‘P’ is a green crystalline solid, which in heating gives a reddish brown solid ‘Q’. Two gases ‘R’ and ‘S’ are evolved.

a) Identify ‘P’ ‘Q’ ‘R’ ‘S’
b) Write a balanced chemical equation for the following
c) Identify the type of reaction

Answer 1

(a) 'P' is iron sulphate, 'Q' is iron oxide, 'R' is sulphur dioxide and 'S' is sulphur trioxide.

(b). 2FeSO4 — Fe2O3 + SO2 + SO3

(c)it is a decomposition reaction.