$Zn$ reacts with $H_2SO_4$ and $HCl$ to produce hydrogen gas,but it does not produce hydrogen gas with $HNO_3$ because:

• A
  $NO_3^-$ is reduced in preference to $H_3O^+$
• B
  $HNO_3$ is a stronger oxidizing agent than $H_2SO_4$ and $HCl$
• C
  $Zn$ acts as an oxidizing agent when it reacts with $HNO_3$
• D
  In the electrochemical series,$Zn$ is placed above hydrogen