Question

Complete and balance the following reaction:

$4H^{+}+\_\_\_\_\_\_\to 2H_2$

Answer 1

• When four atoms of Hydrogen will be added four-electron it will give two molecules of Hydrogen.
• So, the reaction will be $4H^{+}+4e^{-}\to 2H_2$
• The equation is balanced as there is four Hydrogen on both sides of the reaction.