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Surface Chemist...

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  • Question 1
    1 / -0.25

    When a graph is plotted between log x/m and log p, it is straight line With an angle 45 °and intercept 0.3010 on y-axis. If initial pressure is 0.3 atm, what will be the amount of gas adsorbed per gm of adsorbent :           

  • Question 2
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    Which of the following statements about physical adsorption is not  correct ?

  • Question 3
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    Following is the variation of physical adsorption with temperature:

  • Question 4
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    Finally divided catalyst has greater surface area and has greater catalytic activity then the compact solid. If a total surface area of 6291456 cm is required for adsorption of gaseous reaction in a catalysed reaction, then how many splits should be made of cube exactly 1 cm in length.           

  • Question 5
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    Which of the following is not characteristic of chemisorption?           

  • Question 6
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    A colloidal solution can be purified following the method of            

  • Question 7
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    Gold number of a lyophilic sol is such property that:           

  • Question 8
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    100 mL of a colloidal solution is completely precipitated by addition of 5 mL of 1 M Nacl solution . Calculate the coagulation value of Nacl .       

  • Question 9
    1 / -0.25

    At CMC, the surfactant molecules :           

  • Question 10
    1 / -0.25

    Some type of gels like gelatin loose water slowly. The process is  known as :           

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