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What name is given to the catalysis when...

What name is given to the catalysis when the state of the catalyst is the same as those of the reactants.

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Homogeneous catalysis.
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Read the given passage and answers following questions : A catalytic process in which the catalyst and the reactants are present in different phases is known as a heterogeneous catalysis. This heterogeneous catalytic action can be explained in terms of the adsorption theory. The mechanism of catalysis involves the following steps: (i) Adsorption of reactant molecules on the catalyst surface. (ii) Occurrence of a chemical reaction through the formation of an intermediate. (iii) De-sorption of products from the catalyst surface (iv) Diffusion of products away from the catalyst surface. In this process, the reactants are usually present in the gaseous state and the catalyst is present in the solid state. Gaseous molecules are then adsorbed on the surface of the catalyst. As the concentration of reactants on the surface of the catalyst increases, the rate of reaction also increases. In such reactions, the products have very less affinity for the catalyst and are quickly desorbed, thereby making the surface free for other reactants. What is heterogeneous catalysis.

Read the given passage and answers following questions : A catalytic process in which the catalyst and the reactants are present in different phases is known as a heterogeneous catalysis. This heterogeneous catalytic action can be explained in terms of the adsorption theory. The mechanism of catalysis involves the following steps: (i) Adsorption of reactant molecules on the catalyst surface. (ii) Occurrence of a chemical reaction through the formation of an intermediate. (iii) De-sorption of products from the catalyst surface (iv) Diffusion of products away from the catalyst surface. In this process, the reactants are usually present in the gaseous state and the catalyst is present in the solid state. Gaseous molecules are then adsorbed on the surface of the catalyst. As the concentration of reactants on the surface of the catalyst increases, the rate of reaction also increases. In such reactions, the products have very less affinity for the catalyst and are quickly desorbed, thereby making the surface free for other reactants. How many steps involved in mechanism of catalysis ?

Read the given passage and answers following questions : A catalytic process in which the catalyst and the reactants are present in different phases is known as a heterogeneous catalysis. This heterogeneous catalytic action can be explained in terms of the adsorption theory. The mechanism of catalysis involves the following steps: (i) Adsorption of reactant molecules on the catalyst surface. (ii) Occurrence of a chemical reaction through the formation of an intermediate. (iii) De-sorption of products from the catalyst surface (iv) Diffusion of products away from the catalyst surface. In this process, the reactants are usually present in the gaseous state and the catalyst is present in the solid state. Gaseous molecules are then adsorbed on the surface of the catalyst. As the concentration of reactants on the surface of the catalyst increases, the rate of reaction also increases. In such reactions, the products have very less affinity for the catalyst and are quickly desorbed, thereby making the surface free for other reactants. What is diffusion ?

BETTER CHOICE PUBLICATION-SURFACE CHEMISTRY -Question Bank
  1. Give the mechanism of heterogeneous catalysed reaction.

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  2. Give four examples of heterogeneous catalysis.

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  3. What name is given to the catalysis when the state of the catalyst is ...

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  4. What name is given to the catalysis when the state of the catalyst is ...

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  5. What name is given to the catalysis which is explained by lock-and-key...

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  6. Write two differences between homogeneous catalysis and heterogeneous ...

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  7. What is homogeneous and heterogeneous catalysis ? Give one example of ...

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  8. Write two differences between homogeneous catalysis and heterogeneous ...

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  9. Explain briefly homogeneous catalysis.

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  10. What do you understand by activity and selectivity of a catalyst ? Giv...

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  11. What is shape selective catalysis?

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  12. Describe some features of catalysis by zeolites.

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  13. How do enzymes differ from catalysts ?

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  14. What are Enzymes ? Give important characteristics of enzyme catalysis.

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  15. Give the mechanism of heterogeneous catalysed reaction.

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  16. Explain two applications of enzymes.

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  17. What are colloids ?

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  18. which are the properties of colloidal solution ?

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  19. What is the difference between true solution and colloidal solution?

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  20. Give three differences between suspension and colloid solution.

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