Which compound forms an acidic solution when dissolved in water?

A.     ${\text{FeC}}{{\text{l}}_{\text{3}}}$

B.     ${\text{C}}{{\text{H}}_{\text{3}}}{\text{N}}{{\text{H}}_{\text{2}}}$

C.     ${\text{NaN}}{{\text{O}}_{\text{3}}}$

D.     ${\text{N}}{{\text{a}}_{\text{2}}}{\text{C}}{{\text{O}}_{\text{3}}}$

A