4 g 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 balanced chemical equation for the reaction and name the products
formed.
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Answer:
(1) 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
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