A suspension containing insoluble substances `ZnS, MnS, HgS, Ag_(2)S` and `FeS`, is treated with `2N HCl`.On filtering, the filt

A suspension containing insoluble substances `ZnS, MnS, HgS, Ag_(2)S` and `FeS`, is treated with `2N HCl`.On filtering, the filtrate contains appreciable amounts of which one of the following ?
A. Zinc and mercury
B. Silver and iron
C. Manganese and mercury
D. Zinc, manganese and iron

A suspension containing insoluble substances `ZnS, MnS, HgS, Ag_(2)S` and `FeS`, is treated with `2N HCl`.On filtering, the filtrate contains apprecia

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