Explain the following terms related to Adsorption Chromatography:
$(a)$ Principle of Adsorption chromatography.
$(b)$ Adsorbent.
$(c)$ Mobile phase.
$(d)$ Adsorbate.
$(a)$ Principle of Adsorption chromatography.
$(b)$ Adsorbent.
$(c)$ Mobile phase.
$(d)$ Adsorbate.
(N/A) Principle: This method is based on the differential adsorption of various components of a mixture on a suitable adsorbent to different degrees.
$(b)$ Adsorbent: The solid substance on whose surface the components are adsorbed is called an adsorbent. Examples include $Silica \ gel$ and $Alumina$. It acts as the stationary phase.
$(c)$ Mobile phase: The liquid solvent or gas that flows over the stationary phase (adsorbent) and carries the components of the mixture is known as the mobile phase.
$(d)$ Adsorbate: The substance or mixture of substances that gets adsorbed onto the surface of the adsorbent is called the adsorbate. These components migrate at different rates depending on their affinity for the stationary phase and the mobile phase,leading to their separation.
$(b)$ Adsorbent: The solid substance on whose surface the components are adsorbed is called an adsorbent. Examples include $Silica \ gel$ and $Alumina$. It acts as the stationary phase.
$(c)$ Mobile phase: The liquid solvent or gas that flows over the stationary phase (adsorbent) and carries the components of the mixture is known as the mobile phase.
$(d)$ Adsorbate: The substance or mixture of substances that gets adsorbed onto the surface of the adsorbent is called the adsorbate. These components migrate at different rates depending on their affinity for the stationary phase and the mobile phase,leading to their separation.
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Similar Questions
When $O_{2}$ is adsorbed on a metallic surface,electron transfer occurs from the metal to $O_{2}$. The $TRUE$ statement$(s)$ regarding this adsorption is(are)
$(A)$ $O_{2}$ is physisorbed
$(B)$ heat is released
$(C)$ occupancy of $\pi_{2p}^{*}$ of $O_{2}$ is increased
$(D)$ bond length of $O_{2}$ is increased
$(A)$ $O_{2}$ is physisorbed
$(B)$ heat is released
$(C)$ occupancy of $\pi_{2p}^{*}$ of $O_{2}$ is increased
$(D)$ bond length of $O_{2}$ is increased
The following graph is obtained for physisorption of a gas as a function of pressure at different temperatures. The correct order of the temperatures is:
Which of the following is true with respect to chemical adsorption?
Medium
View SolutionGiven below are two statements: one is labelled as Assertion $(A)$ and the other is labelled as Reason $(R)$.
Assertion $(A)$: In expensive scientific instruments,silica gel is kept in watch-glasses or in semipermeable membrane bags.
Reason $(R)$: Silica gel adsorbs moisture from air via adsorption,thus protects the instrument from water corrosion (rusting) and/or prevents malfunctioning.
In the light of the above statements,choose the correct answer from the options given below:
Assertion $(A)$: In expensive scientific instruments,silica gel is kept in watch-glasses or in semipermeable membrane bags.
Reason $(R)$: Silica gel adsorbs moisture from air via adsorption,thus protects the instrument from water corrosion (rusting) and/or prevents malfunctioning.
In the light of the above statements,choose the correct answer from the options given below:
Rate of physical adsorption increases with
MediumKCET 2009
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