Question

Which of the reactants act as oxidant or reductant if any:

$2C{u}^{2+}+4I^{-}\to 2CuI+I_2$

• A. $C{u}^{2+}$
• B. $I^{-}$
• C. Both of these
• D. None of these

Answer 1

The correct option is C Both of these

The oxidation number of iodine increases from -1 to 0. Thus, Ca is oxidized and acts as reductant.
The oxidation number of Cu decreases from 2 to 1. Thus, $C{u}^{2+}$ is reduced and acts as oxidizing agent.