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 supersaturated?
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 supersaturated?
A)(2) 
B)(3) 
C)(4) 
D)None of these

Quizplus · Accepted Answer

A supersaturated solution contains more dissolved solute than it would under normal circumstances at a given temperature. If solution (1) is saturated with CuS, any solution with a higher concentration of CuS than solution (1) would be considered supersaturated, which applies to solution (2) in this context.

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