# $2D_2O\overset{electrolysis}{\rightarrow}$

$\begin{array}{1 1}(a)\;2D_2+O_2&(b)\;2D+O_3\\(c)\;D_2+O_2&(d)\;D_2+3O_2\end{array}$

Solution :
Gaseous deuterium can be prepared either by electrolysis of heavy water in the presence of little of $Na_2CO_3$ or by treatment of iron or tungsten with heavy water in vapour state.
answered Nov 29, 2013
edited Oct 23, 2017 by meena.p