Identify the correct order of solubility of Na_2S, CuS and ZnSin aqueo – InterviewSolution

1.	Identify the correct order of solubility of Na_2S, CuS and ZnSin aqueous medium :
Answer» `CuS gt ZnS gt Na_2S` `ZnS gt Na_2S gt CuS` `Na_2S gt CuS gt ZnS` `Na_2S gt ZnS gt CuS`. Solution :`K_(sp)` of Cus is LESS than Zns and therefore ZnS is more soluble. The sodium salts are HIGHLY SOLUBLEIN water .

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