# Calculate the number of moles of $H_2SO_4$ present in $50\; ml$ of $0.2 \;m\;H_2SO_4$
$\begin{array}{1 1} (a)0.01\;moles \\ (b)0.05\;moles\\ (c) 0.07\;moles\\ (d) 0.08\;moles \end{array}$