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Strong heating of ferrous sulphate leads to the formation of a brown solid and two gases. This reaction can be categorised as(A) displacement and redox. (B) decomposition and redox. (C) displacement and endothermic. (D) decomposition and exothermic.
Correct Answer: (B) decomposition and redox.
Explanation: Strong heating of ferrous sulphate leads to its decomposition to ferric oxide (Fe2O3), a brown solid and two gases (SO2 and SO3) which has a characteristic odour of burning sulphur.
This reaction is a decomposition reaction because FeSO4 splits into three different products.
As Fe2+ is further oxidized to Fe3+ and also a part of S (VI) is reduced to S (IV), thus it is also a redox reaction.
Updated on: 10-Oct-2022
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