Ordinary hydrogen at room temperature is a mixture of

  • A
    $75\%$ of $o-$Hydrogen $+ 25\%$ of $p-$Hydrogen
  • B
    $25\%$ of $o-$Hydrogen $+ 75\%$ of $p-$Hydrogen
  • C
    $50\%$ of $o-$Hydrogen $+ 50\%$ of $p-$Hydrogen
  • D
    $1\%$ of $o-$Hydrogen $+ 99\%$ of $p-$Hydrogen

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