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A green salt in heating decomposes it produce a colorless suffocating gas and leaves behind a brown residue . Name the salt and write decomposition



That salt was iron sulphate. Iron sulphate(FeSO₄) produces a colourless suffocating gas and leaves behind a brown residue.

FeSO₄ (s) ⇒ Fe₂O₃ (s)  +  SO₂ (g) +  SO₃(g)
green)            (brown)

hope it helps..:)
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