In an aqueous solution of $A_2B_3$,it undergoes complete ionization according to the reaction $A_2B_3 \rightleftharpoons 2A^{+3} + 3B^{-2}$. The concentration of $A^{+3}$ is equal to......

  • A
    $B^{-2}$
  • B
    $\frac{3}{2} [B^{-2}]$
  • C
    $\frac{2}{3} [B^{-2}]$
  • D
    $\frac{1}{2} [B^{-2}]$

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