The decomposition of gaseous $H_2$ adsorbed on a metal surface like tungsten is a reaction of which order?

What is the number of molecular layers on the adsorbent in chemical adsorption?

Which of the following is an incorrect statement?

In the Freundlich isotherm $\frac{x}{m}=k p^{\frac{1}{n}}$ plot of $\log \frac{x}{m}$ vs $\log p$,the intercept is (where,$x$,$m$,$p$ and $k$ are mass of the gas,mass of adsorbent,pressure and constant which depend on the nature of the adsorbent,respectively)

The given graphs $I$,$II$,$III$,and $IV$ represent general trends observed for different physisorption and chemisorption processes under mild conditions of temperature and pressure. Which of the following choice$(s)$ about $I$,$II$,$III$,and $IV$ is (are) correct?
$(A)$ $I$ is physisorption and $II$ is chemisorption
$(B)$ $I$ is physisorption and $III$ is chemisorption
$(C)$ $IV$ is chemisorption and $II$ is chemisorption
$(D)$ $IV$ is chemisorption and $III$ is chemisorption

Which of the following statements is $NOT$ correct regarding the adsorption of a gas on a solid surface?