Question

AlCl3 + Na NaCl + Al Did Na change oxidation number?

Answer 1

Explanation:

The given reaction equation is as follows.

       $AlCl_{3} + Na \rightarrow NaCl + Al$

To balance this equation, we multiply Na by 3 on reactant side and NaCl by 3 also.

Thus, the balanced equation is as follows.

         $AlCl_{3} + 3Na \rightarrow 3NaCl + Al$

The oxidation and reduction reaction will be as follows.

Oxidation:     $3Na \rightarrow 3Na^{+} + 3e^{-}$

Reduction:    $Al^{3+} + 3e^{-} \rightarrow Al$

Thus, we can conclude that oxidation state of sodium changes from 0 to +1.