bhawan took a pale green substance A in a text tube and heated it over the flame of a burner .A brown colourd reside sesidue B was formed along with evolution of two gasses with burning small of sulpher.ideantify A and B write the chemical reaction involved
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When ferrous sulphate which is pale green substance on decomposition produce brown colour residue of ferric acid and oxides of sulphur.
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The substance A is ferrous sulphate . When it is heated ferric oxide ,sulphur trioxide and sulphur dioxide is formed . The colour of the gas sulphur trioxide is brown .
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