Question

11.) Consider the following equilibrium.
Cu2+ (aq) + 4Br-(aq) = [CuBr]2-(aq) H > 0
(blue) (Colorless) (green)
Which one of the following actions can change the color of the equilibrium mixture from blue to green?
(1) Adding NaBr (s) to the system. (4) Reducing temperature of the system.
(2) Adding NaNO3 (s) to the system » (8) Shaking the system with Cu powder.
(3) Adding suitable catalyst to the system.​

Answer 1

Answer:

(3) Adding NaNO3 to the system