Question

when a green iron salt is heated strongly its colour finally changes to black and odour of burning sulphur is given out. name the iron salt,name the type of reaction that takes place during the heating of iron salt and write the balance chemical equation for the reaction involved

Answer 1

salt-ferrous sulphate
reaction- thermal decomposition reaction

2FeSO4 forms Fe2O3+SO2+SO3

FeSO4 is green in colour
Fe2O3 is brown in colour