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# The gas liberated when alkaline formaldehyde solution is reacted with hydrogen peroxide in the presence of pyragahol is

$\begin{array}{1 1}(a)\;H_2\\(b)\;O_2\\(c)\;CH_4\\(d)\;CO_2\end{array}$

The gas liberated when alkaline formaldehyde solution is reacted with hydrogen peroxide in the presence of pyragahol is $H_2$
Hence (a) is the correct answer.