In which of the following pairs of insoluble | vedclass

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(A) $BiOCl$ is insoluble in water but dissolves in concentrated $HCl$ to form soluble $BiCl_3$ complex: $BiOCl + 2HCl \rightleftharpoons BiCl_3 + H_2O

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$BiOCl, Hg_2Cl_2$

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(A) $BiOCl$ is insoluble in water but dissolves in concentrated $HCl$ to form soluble $BiCl_3$ complex: $BiOCl + 2HCl \rightleftharpoons BiCl_3 + H_2O$.$Hg_2Cl_2$ (calomel) is insoluble in water and does not dissolve in concentrated $HCl$ (it reacts with $NH_3$ to form black $Hg + Hg(NH_2)Cl$).$AgCl$ is insoluble in water but dissolves in excess $Cl^-$ ions (from $HCl$) to form the soluble complex $[AgCl_2]^-$.Comparing the options,the pair $BiOCl$ and $Hg_2Cl_2$ fits the criteria where $BiOCl$ dissolves in concentrated $HCl$ and $Hg_2Cl_2$ does not.

In which of the following pairs of insoluble chlorides,one dissolves in concentrated $HCl$ and the other is not soluble?

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