Find the number of moles of `KMnO_(4)` needed one mole `Cu_(2)S` in acidic medium.
Channel: Doubtnut
Date: 2020-04-12

Find the number of moles of `KMnO_(4)` needed one mole `Cu_(2)S` in acidic medium.   The reaction is `KMnO_(4) + Cu_(2)S rarr M n^(2+) + Cu^(2+) + SO_(2)`