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2 July, 12:53

What are the observation when hydrogen sulphide passes through K2CR2O7 and KMNO4

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  1. 2 July, 16:17
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    When H2S is bubbled through acidified KMnO4 solution, it decolorises and a white turbidity is observed. This is because, the powerful oxidizing agent permanganate ion has oxidized the sulfide ion (-2) to zero oxidation state.
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