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The best explanation for the dissolution of ZnS in dilute HCl is that: The zinc

ID: 933585 • Letter: T

Question

The best explanation for the dissolution of ZnS in dilute HCl is that:

The zinc ion is amphoteric.

The sulfide-ion concentration is decreased by the formation of H2S.

the sulfide-ion concentration is decreased by oxidation to sulfur.

the zinc-ion concentration is decreased by the formation of a chloro complex.

The solubility product of ZnCl2 is less than that of ZnS.

The zinc ion is amphoteric.

The sulfide-ion concentration is decreased by the formation of H2S.

the sulfide-ion concentration is decreased by oxidation to sulfur.

the zinc-ion concentration is decreased by the formation of a chloro complex.

The solubility product of ZnCl2 is less than that of ZnS.

The best explanation for the dissolution of ZnS in dilute HCl is that: The zinc ion is amphoteric. The sulfide-ion concentration is decreased by the formation of H2S. the sulfide-ion concentration is decreased by oxidation to sulfur. the zinc-ion concentration is decreased by the formation of a chloro complex. The solubility product of ZnCl2 is less than that of ZnS.

Explanation / Answer

The sulfide-ion concentration is decreased by the formation of H2S.

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