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Write the name of the element which is d...

Write the name of the element which is diagonally related to the element beryllium.

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UNITED BOOK HOUSE-MODEL QUESTION PAPER 8-EXERCISE
  1. Elements A, B ,C and atomic number (Z-2), Z and (Z+1) respectively. Of...

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  2. Why the second electron gain enthalpy of oxygen is +vc value?

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  3. Write the name of the element which is diagonally related to the eleme...

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  4. Is there any change in hybridisation of B and N atoms as a result of t...

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  5. The percentage of ionic character of LiH is 76.81% and the bond length...

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  6. HF2^- ion exists but HBr2^- ion does not explain.

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  7. (i) Any real gas behaves ideally at very low pressure and high tempera...

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  8. State Daltons partial pressure laws and derive partial pressure and to...

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  9. Calculate the bond energy of O-H bond in H(2)O(g) at the standard stat...

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  10. Calculate the bond energy of O-H bond in H(2)O(g) at the standard stat...

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  11. The latent heat of fusion of ice at 0^@C is 6025.24 J. mol^-1. Calcula...

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  12. What will be the change in entropy in an irreversible cyclic process ?

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  13. What is the oxidation number of Fe atom in K4[Fe(CN)6] molecule?

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  14. Balance the following Chemical equation by oxidation number method :-C...

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  15. Balance by ion electron method : Zn + NaNO3 rarr Na2ZnO2 + NH3 + H2O

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  16. Mention the oxidation number of Cr atom in CrO5 molecule.

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  17. What do you mean by ortho and para hydrogen ? explain why the chemical...

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  18. Lithium forms monoxide while sodium forms peroxide in the presence of ...

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  19. Which alkali metal is used for making photoelectric cells?

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  20. Both alkaline earth metals and their salts are diamagnetic in nature e...

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