$A$ current of $0.4 \ A$ is passed through excess of molten $MgCl_2$ for $9.65 \times 10^4 \ sec$. The mass of $Mg$ deposited at the cathode is .............. $gm$

  • A
    $0.4$
  • B
    $2.4$
  • C
    $4.8$
  • D
    $9.6$

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