The reaction which proceeds in the forward direction is:

CHEMISTRY · Single correct · A Level · Chemistry · Oxidation, reduction and redox reactions · Oxidation, reduction and redox reactions

Problem

The reaction which proceeds in the forward direction is: (1)

\mathrm{Fe_2O_3+6HCl\rightarrow2FeCl_3+3H_2O}

(2)

\mathrm{NH_3+H_2O+NaCl\rightarrow NH_4Cl+NaOH}

(3)

\mathrm{SnCl_4+Hg_2Cl_2\rightarrow SnCl_2+2HgCl_2}

(4)

\mathrm{2CuI+I_2+4K^+\rightarrow2Cu^{2+}+4KI}