If $x$ is the amount of adsorbate and $m$ is the amount of adsorbent,which of the following relations is not related to the adsorption process?

Which of the following statements is incorrect regarding physisorption?

Which of the following gases is adsorbed to maximum extent?

Which of the following statements is correct for the Freundlich adsorption isotherm?

Which of the following is not a characteristic of chemisorption?

$CO_{2}$ gas adsorbs on charcoal following Freundlich adsorption isotherm. For a given amount of charcoal,the mass of $CO_{2}$ adsorbed becomes $64$ times when the pressure of $CO_{2}$ is doubled. The value of $n$ in the Freundlich isotherm equation is $......\,\times 10^{-2}$. (Round off to the Nearest Integer)