Answer : The correct option is, (a) Addition of SCN⁻ (aq) will shift the equilibrium in favor of products.
Explanation :
The given reaction is:
[tex]Fe^{3+}(aq)+SCN^-(aq)\rightleftharpoons Fe(SCN)^{2+}aq)[/tex]
Le-Chatelier's principle : This principle states that if any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.
Addition of SCN⁻ (aq)
If the concentration of [tex]SCN^-[/tex] is increased on reactant side then the equilibrium will shift in the direction where decrease of concentration of
Thus, the correct option is, (a) Addition of SCN⁻ (aq) will shift the equilibrium in favor of products.