Question

Consider the following salts: $NaCl,\, HgCl_2,\, Hg_2Cl_2,\, CuCl_2,\, CuCl$ and $AgCl$. Identify the correct set of insoluble salts in water

• A. $Hg_2Cl_2,\, CuCl, \,AgCl$
• B. $HgCl_2,\, CuCl, \,AgCl$
• C. $Hg_2Cl_2, \, CuCl_2,\, AgCl$
• D. $Hg_2Cl_2,\, CuCl, \, NaCl$

Answer 1

Answer: (A)

$Hg_2Cl_2,\, CuCl, \,AgCl$

Answer 2

The correct answer is A:$Hg_2Cl_2,\, CuCl, \,AgCl$
Salts such as $NaCl ,\, HgCl _{2},\, CuCl _{2}$ are soluble in water while salts such as $Hg _{2} Cl _{2},\, CuCl$ and $AgCl$ are insoluble in water.