Which of the following statements is not correct?

  • A
    Physical adsorption is due to van der Waals forces.
  • B
    Chemical adsorption decreases on increasing temperature and pressure.
  • C
    Physical adsorption is reversible.
  • D
    Activation energy for a chemical adsorption is greater than that of physical adsorption.

Explore More

Similar Questions

Which of the following properties belongs to physical adsorption?

Regarding the adsorption of a gas on the surface of a solid,which of the following is $NOT$ true?

The correct order of adsorption of the following gases on the surface of charcoal is: $H_2$ $(I)$,$CH_4$ $(II)$,$SO_2$ $(III)$.

In the figure,a straight line is given for the Freundlich Adsorption isotherm equation $(y = mx + c)$,where the equation is $y = 0.3x + 0.7033$. The values of $\frac{1}{n}$ and $\log K$ are respectively:

Given below are the critical temperatures of some of the gases:
Gas Critical temperature $(K)$
$He$ $5.2$
$CH_{4}$ $190$
$CO_{2}$ $304.2$
$NH_{3}$ $405.5$

The gas showing least adsorption on a definite amount of charcoal is:

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo