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in Chemistry by (57.5k points)

H2S in the presence of HCl precipitates II group but not IV group because 

(A) HCl activates H2

(B) HCl increases concentration of Cl – 

(C) HCl decreases concentration of S2– 

(D) HCl lowers the solubility of H2S in solution

1 Answer

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Best answer

(C) HCl decreases concentration of S2– 

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