The following pictures represent solutions of CuS,which may also contain ions other than Cu 2+ and S 2- which are not shown.Gray spheres represent Cu 2+ ions and dotted spheres represent S 2- ions.
-If solution (1)is a saturated solution of CuS,which of solutions (2)-(4)are saturated?
A)(2)
B)(3)
C)(4)
D)None of these

Question

The following pictures represent solutions of CuS,which may also contain ions other than Cu 2+ and S 2- which are not shown.Gray spheres represent Cu 2+ ions and dotted spheres represent S 2- ions. 
-If solution (1)is a saturated solution of CuS,which of solutions (2)-(4)are saturated?
A)(2) 
B)(3) 
C)(4) 
D)None of these

Quizplus · Accepted Answer

A saturated solution of a substance is one in which the maximum amount of that substance has been dissolved at a given temperature. Without specific information about the solubility of CuS in solutions (2)-(4), their temperatures, or their compositions, it's impossible to determine if they are saturated with respect to CuS just based on the information that solution (1) is saturated. Therefore, without additional details, we cannot conclude that any of the other solutions are saturated.

The Following Pictures Represent Solutions of CuS,which May Also Contain