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# Strength of $2N$ $H_2O_2$ solution is approx

$\begin{array}{1 1}(a)\;10volumes\\(b)\;11.2volumes\\(c)\;22.4volumes\\(d)\;1.12volumes\end{array}$

Volume strength of $H_2O_2=5.6\times N$
$\Rightarrow 5.6\times 2$
$\Rightarrow$ 11.2
Hence (b) is the correct answer.