The ratio of the number of oxygen atoms $(O)$ in $16.0 \ g$ ozone $(O_3)$,$28.0 \ g$ carbon monoxide $(CO)$,and $16.0 \ g$ oxygen $(O_2)$ is (Atomic mass: $C = 12$,$O = 16$ and Avogadro's constant $N_A = 6.0 \times 10^{23} \ mol^{-1}$)

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

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