If the concentration of $SO_4^{2-}$ in an aqueous solution of $Al_2(SO_4)_3$ is $0.27 \ M$,then the concentration of $Al^{3+}$ ions will be ....... $M$.

  • A
    $0.42$
  • B
    $0.27$
  • C
    $0.18$
  • D
    $0.405$

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