Dissociation constant and degree of dissociation of a weak acid are $1.8 \times 10^{-5}$ and $0.03$ respectively. What will be the concentration of the solution of the weak acid (in $M$)?

  • A
    $0.2$
  • B
    $0.02$
  • C
    $0.5$
  • D
    $0.05$

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