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What is the action of acidified potassiumdichromate onhydrogen sulphide (H_(2)S) ? |
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Answer» Solution :When HYDROGEN sulphide `(H_(2)S)` gas is passed into acidified potassium dichromate `(K_(2)Cr_(2)O_(7))` solution, `H_(2)S` is oxidised to a pale YELLOW SOLID of sulphur and orange coloured solution becomes green. `underset("Orange")(K_(2)Cr_(2)O_(7))+4H_(2)SO_(4)+3H_(2)S to K_(2)SO_(4)+underset("Green")(Cr_(2)(SO_(4))_(3))+underset("Pale yellow")(7H_(2)O+3S)` |
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