Compound$(s)$ which will liberate carbon dioxide with sodium bicarbonate solution is/are:
$A = \text{2,4,6-triamino phenol}$
$B = \text{Benzoic acid}$
$C = \text{Picric acid (2,4,6-trinitrophenol)}$

  • A
    $B$ only
  • B
    $C$ only
  • C
    $B$ and $C$ only
  • D
    $A$ and $B$ only

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