Units of rate constant of first and zero order reactions in terms of molarity $M$ unit are respectively

  • A
    $sec^{-1}, \, M \, sec^{-1}$
  • B
    $sec^{-1}, \, M$
  • C
    $M \, sec^{-1}, \, sec^{-1}$
  • D
    $M, \, sec^{-1}$

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