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Electron affinity of inert elements are ...

Electron affinity of inert elements are positive. Why?

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UNITED BOOK HOUSE-TANTIA HIGH SCHOOL QUESTION PAPER -EXERCISE
  1. Which has the maximum number of molecules among the following—

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  2. Write two limitations of Bohr’s atomic model.

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  3. Electron affinity of inert elements are positive. Why?

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  4. A metallic oxide contains 60% of metal. Calculate the equivalent weigh...

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  5. Calculate the equivalent weight of phosphate radical.

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  6. Arrange the following ions in ascending order of their ionic radic Na^...

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  7. Is the electronegativity of Sn^(2+) and Sn^(4+) equal or different? Ex...

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  8. When an electron jumps down from 5th Bohr orbit to 3rd Bohr orbit in H...

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  9. State Pauli's exclusion principle.

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  10. How many number of electrons are present in one HClO4 molecule.

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  11. An aromatic organic compound has the following composition by weight c...

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  12. Write the electronic configuration of Fe^(2+) and Cu^+ ions. Atomic nu...

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  13. Why is the radius of cation less compared to that of the corresponding...

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  14. What do you understand by electro-negativity of an element?

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  15. Assuming the reactant and product gases of chemical reaction as ideal,...

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  16. From the given data find the heat of formation of methane. C + O2= CO...

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  17. What do you mean by entropy? Show that the entropy is a state function...

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  18. Draw the Lewis. dot picture of the following : O3,COCl2and N2O4.

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  19. Who the shape of the following molecules according to VSEPR rule? PCL5...

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  20. Express the relation between the rate of diffusion of a gaseous substa...

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