Arrange the following in order of increasing mass:
$I$. $1$ mole of $N_2$
$II$. $0.5$ mole of $O_3$
$III$. $3.011 \times 10^{23}$ molecules of $O_2$
$IV$. $0.5$ gram atom of $O$

  • A
    $IV < III < II < I$
  • B
    $IV < I < III < II$
  • C
    $III < II < IV < I$
  • D
    $I < III < II < IV$

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