# In the electrolysis of alkaline water,a total of 1 mol of gases is evolved.The amount of water decomposed would be

$\begin{array}{1 1}\text{1 mol}\\\text{2 mol}\\\text{(1/3) mol}\\\text{(2/3) mol}\end{array}$

The overall decomposition reaction is $2H_2O\rightarrow 2H_2O+O_2$
The amount of water decomposed is (2/3) mol.