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NO (Nitric oxide) is paramagnetic in the...

NO (Nitric oxide) is paramagnetic in the gaseous
slate but diamagnetic in the liquid and solid states. Why ?

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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. Which theory explains heterogeneous catalytic action?

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 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. What is diffusion ?

JMD PUBLICATION-THE p-BLOCK ELEMENTS-Example
  1. Why white or yellow phosphorus is always kept under water ?

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  2. Nitric oxide becomes brown when released in air. Explain why ?

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  3. NO (Nitric oxide) is paramagnetic in the gaseous slate but diamagnet...

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  4. Why does the reactivity of nitrogen differ from the phosphorus ?

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  5. Molecular nitrogen is not particularly and reactive. Why?

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  6. Describ chemistry of manufacture of ammonia by Haber's process and dis...

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  7. Describe Ostwald's process for the manufacture of nitric acid. Give ...

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  8. What is aqua regia ?

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  9. llustrate how copper metal can give different products on reaction w...

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  10. The HNH angle value is higher than HPH, HAsH and HSbH angles. Why

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  11. Explain why NH3 is basic but BiH3 is only feebly basic.

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  12. Why is oxygen a gas while sulphur is a solid at room temperature?

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  13. Sulphur shows +4 and +6 oxidation state in their compounds but oxyge...

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  14. H2S is a gas but H2O is liquid at room temperature. Explain.

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  15. Discuss anomalous character of oxygen.

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  16. Why is H2S less acidic than H2 Te ?

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  17. Why does ozone (03) acts as a powerful oxidising agent ? Give exam...

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  18. Why does ozone (03) acts as a powerful oxidising agent ? Give exam...

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  19. Why does ozone (03) acts as a powerful oxidising agent ? Give exampl...

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  20. Why does ozone (03) acts as a powerful oxidising agent ? Give exampl...

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