At 90 °C, a solution of 50 g of KCI in 100 g of H2O, is

Choose option a b or c
A unsaturated
B saturated
C supersaturated

B saturated

At 90 °C, the maximum amount of KCl that can dissolve in 100 g of water is 50 g (given in the solution). Therefore, the solution is saturated because it is holding the maximum amount of KCl at that temperature.