1.

KMnO_(4) acts as an oxidising agent in acidic medium. The number of moles of KMnO_(4) that will be needed to react with one mole of sulphide ions in acidic solution is…..

Answer»

`(2)/(5)`
`(3)/(5)`
`(4)/(5)`
`(1)/(5)`

Solution :`(2)/(5) MnO_(4)^(-) + S^(2-) + (16)/(5) H^(+) rarr (2)/(5) Mn^(2+) + S + (8)/(5) H_(2)O`


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