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Surface Chemist...

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  • Question 1
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    The substance that gets adsorbed on the surface of the solid is called

  • Question 2
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    Which of the following is true about chemisorption?

  • Question 3
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    When silica gel and anhydrous calcium chloride are placed in an atmosphere of high humidity, then which of them will have more moisture in the bulk?

  • Question 4
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    Adsorption is accompanied by

  • Question 5
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    Which of the following electrolytes will be the most effective in coagulating blood?

  • Question 6
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    Water vapours are adsorbed by

  • Question 7
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    Zeigler-Natta catalyst used for polymerization of ethylene is basically

  • Question 8
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    Which of the following statements regarding adsorption is not true?

  • Question 9
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    Which of the following statements regarding adsorption is not correct?

  • Question 10
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    The efficiency of enzyme catalysis is due to its capacity to

  • Question 11
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    Which of the following statements is true?

  • Question 12
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    Directions: The following question has four choices out of which ONLY ONE is correct.

    Which of the following statements is not correct?

  • Question 13
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    Which of the following is/are correct according to the given adsorption isotherm? 

  • Question 14
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    Which zeolite is used by the petrochemical industry to catalyze the cracking of hydrocarbons?

  • Question 15
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    Emulsions are colloids formed by immiscible liquids and are stabilized by adding a stabilizer. Insoluble soap acts as a stabilizer because

  • Question 16
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    Which of the following will have the least coagulating power for arsenious sulphide sol?

  • Question 17
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    Which of the following factors are responsible for an increase in the rate of a surface-catalysed reaction?

    1. A catalyst provides proper orientation for the reactant molecules to react.
    2. Heat of adsorption of the reactants on a catalyst helps the reactant molecules to attain the required activation energy.
    3. The catalyst increases the activation energy of the reaction.
    4. Adsorption increases the local concentration of reactant molecules on the surface of the catalyst.

  • Question 18
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    The autocatalyst used in the oxidation of oxalic acid by acidified KMnO4 is 

  • Question 19
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    Which of the following acts as a catalytic poison in Haber's process? 

  • Question 20
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    The phenomenon in which adsorption and absorption takes place simultaneously is called

  • Question 21
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    The reactions involving zeolites as catalysts depend on

  • Question 22
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    Which of the following catalysts is used for the decomposition of KClO3?  

  • Question 23
    1 / -0

    Column chromatography is based on the principle of  

  • Question 24
    1 / -0

    Directions: The following question has four choices out of which ONLY ONE is correct.

    The adsorbent used to decolorize raw sugar is

  • Question 25
    1 / -0

    Which of the following substances is not used for preparing lyophilic sols? 

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