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Surface Chemistry Test - 6

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Surface Chemistry Test - 6
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Weekly Quiz Competition
  • Question 1
    1 / -0

    Adsorption is a

    Solution

    Adsorption is entirely a surface phenomenon while absorption is bulk phenomenon.

  • Question 2
    1 / -0

    Which is correct in case of Van der waal adsorption?

    Solution

    Physisorption is favoured only at low temperature and high pressure.

  • Question 3
    1 / -0

    Which adsorption takes place at low temperature?

    Solution

    Physical adsorption is favoured at low temperature because it involves only vanderwall interactions between adsorbate and adsorbent.

  • Question 4
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    Pt and Pd adsorb large volume of hydrogen under specific conditions. The hydrogen so adsorbed is called

    Solution

    Adsorption of hydrogen by metal like Pt is occlusion and hydrogen is known as occluded hydrogen.

  • Question 5
    1 / -0

    When adsorption of oxalic acid is carried out on activated charcoal, then activated charcoal is known as

    Solution

    Surface on which adsorption occurs is known as adsorbent.

  • Question 6
    1 / -0

    Which of the following metal solution cannot be prepared by Bredig’s arc method?

    Solution

    Potassium due to very high reactivity, cannot be used here.

  • Question 7
    1 / -0

    The average molecular mass of colloidal can be determined by

    Solution

    Average molecular mass of colloidal solution is determined by Osmotic Pressure measurement.

  • Question 8
    1 / -0

    Which of the following processes does not involve a catalyst?

    Solution

    Thermite process doesn’t require a catalyst. It can easily proceed without the help of catalyst.

  • Question 9
    1 / -0

    Which type of a property is the Brownian movement of colloidal solution?

    Solution

    Movement is always a mechanical property.

  • Question 10
    1 / -0

    Which of the following is not exhibited by solutions?

    Solution

    Due to very less size of colloidal solutions, they do not exhibit flocculation. When a sol is colloidally unstable then the formation of aggregates is called flocculation.

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