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Absorption and adsorption...

Absorption and adsorption

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Absorption is a process in which an ion or molecule gets into a cell or body through a membrane. Whereas adsorption is a process is which accumulation of molecules occurs at the contact surface. It never gets into a cell or body through membrane. Absorption is not surface phenomenon and intermolecular forces do not occur, whereas in adsorption the molecules in contact are held by intermolecular forces. Absorption helps in uptake of minerals and water in plants, whereas adsorption helps in imbibition of water and enzyme activity. Absorption is sometimes an endothermic process whereas adsorption is an exothermic process
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each question constain STATEMENT-1(Assertion ) and STATEMENT - 2 (reason). examine the statement carefully and work the correct answer accoridng to the instructions given below : STATEMENT-1: In adsorption, the molecules of a substance are uniformly distributed throughout the body of other substance. STATEMENT-2: In some cases, both absorption and adsorption takes place simultaneously.

What do you understand by the term adsorption, absorption and sorption ?

Knowledge Check

  • Which of the following statements does not show correct difference between adsorption and adsorption ?

    A
    In adsorption , the substance is concentrated only at the surface while in absorption it is uniformaly distributed in the bulk.
    B
    Adsorption is instantaneous while absorption is a slow process.
    C
    A substance can be adsorbed as well as absorbed simultaneously and the process is called sorption.
    D
    Only gases are adsorbed while solids and liquids are absorbed.

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    Adsorption and Absorption are same. True/False?

    What is the basic difference between adsorption and absorption.

    Distinguish between the meaning of the terms adsorption and absorption. Give one example of each.

    Distinguish between the meaning of the terms adsorption and absorption. Given one example of each.

    Which of the two, adsorption or adsorption, is surface phenomenon?

    Assertion :- The graphical representation of physical adsorption with temp is Reason :- This is weak adsorption & adsorption is exothermic process.

    Chromatography is a technique based on. (a)Adsorption and then desorption of solute (b)Absorption of solute (c)Hydration of solute (d)Evaporation of solute

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