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What is Brownian movement ?...

What is Brownian movement ?

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Knowledge Check

  • Assertion : The values of colligative properties are of smaller order as compared to values shown by true solutions at same concentrations. Reason : Colloidal particles show Brownian movement .

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion
    C
    If assertion is true but reason is false
    D
    if both assertion and reason are false

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    Fill in the blanks by choosing the appropriate word/words from those given in the brackets.(dialysis, peptization , dispersed phase , dispersion medium , electrophoresis , electro-osmosis , coagulation , coagulates, emulsion , gel , gold number , Tyndall effect , protective colloids , electrodialysis) Brownian movement is due to unequal bombardment of molecules of..........on the colloidal particles.

    Explain the terms 'Brownian movement' and 'peptization'.

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    Assertion: The Brownian movement is due to the bombardment on colloidal particle by the molecules of dispersion midium which are in the constant motion like molecules in a gas. Reason: Brownian movement provides a visible proof of the random kinetic motion of molecules in a liquid.

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