In the following reaction: $xA \to yB$,$\log \left[ -\frac{d[A]}{dt} \right] = \log \left[ \frac{d[B]}{dt} \right] + \log 2$,where the negative sign indicates the rate of disappearance of the reactant. Thus,$x : y$ is:

  • A
    $1 : 2$
  • B
    $2 : 1$
  • C
    $3 : 1$
  • D
    $3 : 10$

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