356 " mg of " an alloy of Zn and Cd is precipitated as ZnS and CdS by `H_(2)S`.
Channel: Doubtnut
Date: 2020-07-12

356 " mg of " an alloy of Zn and Cd is precipitated as ZnS and CdS by `H_(2)S`. The mixed precipitate sulphur. The filterate is acidified and the divalent `Fe^(2+)` reqruied 1.6 millimoles of `KMnO_(4)` Find the percentage of Cd in the alloy. `(Cd=112,Zn=65.4)`