$A$ $5\% \ (w/v)$ solution of anhydrous $CaCl_2$ at $0^o C$ exerts an osmotic pressure of $15 \ atm$. The degree of dissociation $(\alpha)$ of $CaCl_2$ is ....... $\%$.

  • A
    $35.37$
  • B
    $41.54$
  • C
    $24.33$
  • D
    $31.77$

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