Choose the correct matching $:-$

Column-$I$	Column-$II$
$P$. $NaBr + \text{Conc. } H_2SO_4 \rightarrow$	$A$. Colourless gas
$Q$. $Na_2S + \text{dil. } HCl \rightarrow$	$B$. Brown colour
$R$. $NaNO_2 + \text{dil. } HCl \rightarrow$	$C$. Rotten egg smell
$S$. $NaNO_3 + \text{Conc. } H_2SO_4 \rightarrow$	$D$. Paramagnetic

• A
  $P-B, D; Q-C; R-A, D; S-B, D$
• B
  $P-B; Q-C; R-A, D; S-B, D$
• C
  $P-B, D; Q-C; R-A, D; S-B$
• D
  $P-B; Q-C; R-A; S-B, D$