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Surface Chemist...

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  • Question 1
    1 / -0

    Soap lather is an example of :

  • Question 2
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    Which of the following is a property of physisorption?

  • Question 3
    1 / -0

    Which one of the following can form micelle?

  • Question 4
    1 / -0

    An example of colloidal sol in which the affinity of the sol particles for the medium is due to hydrogen bonding is :

  • Question 5
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    From the following which is not an emulsifer?

  • Question 6
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    In an experiment, $$200ml$$. of $$0.5$$ oxalic acid is shaken with $$10g$$ of activated charcoal and fiftered. The concentration of the filtrate is reduced to $$0.4 M$$. The amount of adsorption $$(x/m)$$ is?

  • Question 7
    1 / -0

    $$Fe(OH)_3$$ sol is :

  • Question 8
    1 / -0

    The process of adsorption of hydrogen over palladium surface is called:

  • Question 9
    1 / -0

    Assertion:
    A catalyst enhances the rate of a reaction.

    Reason: 
    The energy of activation of the reaction is lowered in the presence of a catalyst.

  • Question 10
    1 / -0

    A catalyst:
    (i) increases the average kinetic energy of reacting molecules
    (ii) decrease the activation energy
    (iii) alters the reaction mechanism
    (iv) increases the frequency of collisions of reacting species.
    The true statements are:

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