Which among the following statements is/are incorrect regarding real gases?
$(i)$ Their compressibility factor is never equal to unity $(Z \neq 1)$.
$(ii)$ The deviations from ideal behavior are less at low pressures and high temperatures.
$(iii)$ Intermolecular forces among gas molecules are equal to zero.
$(iv)$ They obey Van der Waals equation,$PV = nRT$.

  • A
    $(i), (ii), (iv)$ only
  • B
    $(ii), (iv)$ only
  • C
    $(ii)$ only
  • D
    $(iii), (iv)$ only

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