For the adsorption of a gas on a solid adsorbent,which of the following is positive?

Froth flotation process for the concentration of ores is an illustration of the practical application of

Which of the following is not a characteristic of physical adsorption?

What is the role of activated charcoal in gas masks used in coal mines?

Assuming Langmuir monolayer adsorption,the volume of nitrogen gas adsorbed on a sample of silica gel at $STP$ is $1.30 \, cm^3 \, g^{-1}$. The area occupied by a nitrogen molecule is $0.16 \, nm^2$. The surface area of silica gel per gram is ......... $m^2 \, g^{-1}$.

Which plot is the adsorption isobar for chemisorption where $x$ is the amount of gas adsorbed on mass $m$ at temperature $T$?