According to the Langmuir adsorption isotherm,at very high pressure,the amount of gas adsorbed $x/m$ is:

  • A
    Reaches a constant limiting value
  • B
    Increases with increase in pressure
  • C
    Decreases with increase in pressure
  • D
    First increases and then decreases with increase in pressure

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If the value of $\frac{1}{n}$ is equal to $1$ in the Freundlich adsorption isotherm,then $\frac{x}{m} = $ (where $x = $ mass of adsorbate,$m = $ mass of the adsorbent,$p = $ pressure of the gas).

Which of the following statements is correct?

The charge on $As_2S_3$ sol is due to the adsorption of........

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