What is the reaction to increase the intensity of red colour by adding HgCl_2 positive in equilibrium of red colour by adding HgCl_2 positive in equilibrium of Fe_((aq))^(3+) + SCN_((aq))^(-) hArr [Fe(SCN)]_((aq))^(2+)

What is the reaction to increase the intensity of red colour by adding

1.	What is the reaction to increase the intensity of red colour by adding HgCl_2 positive in equilibrium of red colour by adding HgCl_2 positive in equilibrium of Fe_((aq))^(3+) + SCN_((aq))^(-) hArr [Fe(SCN)]_((aq))^(2+)
Answer» Solution :`HgCl_2` is added in solution So, `Hg^(2+)` IONS are increases and combine with `SCN^-` and form `(Hg(SCN)_4)^(2-)`. `[SCN]^(2-)` DECREASES. To MINIMIZE this EFFECT `[FE(SCN)]^(2-)` form by forward reaction. The solution becomes more red.