Question

2 g of ferrous sulphate crystals are heated in a boiling tube.
(i) State the colour of ferrous sulphate crystals both before heating and after heating.
(ii) Name the gases produced during heating.
(iii) Write the chemical equation for the reaction.


class:- X





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Answer 1

1.before heating=green

after heating=brown

2.sulphur dioxide,sulphur trioxide

3.FeSO4.7H20----------->FESO4+7H20

FESO4--------->FE2O3+SO2+SO3