Browse Questions

$x(CH_2O)\rightarrow CO_2+y$.The $y$ can be used as fuel

$\begin{array}{1 1}(a)\;Methane\\(b)\;Nitrous\;gas\\(c)\;Carbondioxide\\(d)\;Oxygen\end{array}$

$2(CH_2O)\rightarrow CO_2+CH_4$
The y can be used as fuel Methane.
Hence (a) is the correct answer.