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What is the number of valence electrons ...

What is the number of valence electrons in : (b) oxide ion, O2–

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MODERN PUBLICATION-SURFACE CHEMISTRY-EXERCISE
  1. On the basis of data given below predict which of the following gases ...

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  2. In which of the following reactions heterogenous catalyse is involved?...

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  3. What is the number of valence electrons in : (b) oxide ion, O2–

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  4. Atom A has a mass number 209 and atomic number 82. Atom B has a mass n...

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  5. Method by which lyophobic sol can be protected.

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  6. Freshly prepared precipitate sometimes gets converts colloidal solutio...

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  7. Which of the following electrolytes will have maximum coagulating valu...

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  8. A colloidal system having a solid substances as a dispersed phase and ...

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  9. The values of colligative properties of colloidal solution are of smal...

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  10. Atom A has a mass number 209 and atomic number 82. Atom B has a mass n...

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  11. Atom A has a mass number 209 and atomic number 82. Atom B has a mass n...

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  12. Which of the following curves is in accordance with Freundlich adsorpt...

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  13. Which of the following process is not responsible for the presence of ...

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  14. Which of the following phenomenon is applicable to the process shown i...

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  15. In the following questions two or more options may be correct. Which o...

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  16. What do the subscripts (lower figures) and superscripts (upper figures...

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  17. what volume of oxygen would be required to burn completely 400 ml of a...

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  18. H2 gas is adsorbed on activated charcoal to a very little extent in co...

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  19. Which of the following statements are correct ?

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  20. An emulsion cannot be broken by and .

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