(a) When potassium chloride solution is added to silver nitrate solution, an insoluble white substance is formed. Write the equation of the chemical reaction occurring in it and describe the type of reaction.
(b) On heating ferrous sulphate is decomposed to produce a gas with the smell of a colorless burning sulfur. Write the equation of the chemical reaction and describe its type.
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ans 1. When an aqueous solution of potassium chloride(KCl) when mixed with silver nitrate(AgNO3) solution an insoluble white substance formed is silver chloride(AgCl). The chemical reaction are as follows : KCl(aq) + AgNO3(aq) → KNO3(aq) + AgCl (s).
Ans 2. Ferrous sulphate on heating decomposes to produce ferric oxide, sulphur dioxide and sulphur trioxide. The balanced equation for this thermal decomposition reaction can be written as: 2FeSO4(s)→heatFe2O3(s)+SO2(g)+SO3(g)
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