Iron (III) ion and thiocyanate ion exists in equilibrium withiron thiocyanate ion. The reaction, as written, isexothermic. Given that theFeNCS2+
product is a deep red color and the reactants are nearly colorless,which of the following will cause the solution tobedarker in color at equilibrium?
Fe3+(aq) +NCS–(aq) ↔FeNCS2+(aq)
| | Increasing the solution temperature |
| | Adding FeNO3 |
| | Removing Fe3+ ion by adding NaOH which reacts withFe3+ ion. |
| | Removing NCS– ion by addingAgNO3 with reactacts withNCS– ion. |
| | None of these |
