Analytical ChemistryHard
Question
A mixture of two salts is not water soluble but dissolves completely in dilute HCl to form a colourless solution. The mixture could be :
Options
A.AgNO3 and KBr
B.BaCO3 and ZnS
C.FeSO4 and Na2CO3
D.Mn(NO3)2 and MgSO4
Solution
BaCO3 + ZnS mixture dissolves in HCl but is insoluble in water. Further the solution in HCl will be colourless due to the formation of soluble BaCl2 and ZnCl2.
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