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A mixture of two salts is not water soluble but dissolves completely in dil. HCl to form a colourless solution. The mixture could be

(a) $AgNO_3$ and $KBr$
(b) $BaCO_3$ and $ZnS$
(c) $FeCl_3$ and $CaCO_3$
(d) $Mn(NO_3)_2$ and $MgSO_4$
Can you answer this question?

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Answer: $BaCO_3$ and $ZnS$
$BaCO_3$ + $ZnS$ mixture dissolves in HCl but is insoluble in water. Further the solution in HCl will be colourless.
answered Jan 26, 2014 by mosymeow_1
edited Jan 29, 2014 by mosymeow_1

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