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Arrange as indicated - H2O , H2S , H2Se...

Arrange as indicated - `H_2O , H_2S , H_2Se , H_2Te` ( increasing bond angle )

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USHA PUBLICATION-P-BLOCK ELEMENTS( GR-15,GR16,GR17,GR18)-EXERCISE
  1. Arrange as indicated -NH3 , PH3 , AsH3 , SbH3 (increasing basic stre...

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  2. Arrange the halogen acids in increasing order of their acidic strength...

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  3. Arrange as indicated - H2O , H2S , H2Se , H2Te ( increasing bond ang...

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  4. On the basis of VSEPR theory explain the shape of BrF3 molecule .

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  5. Describe the geometry of XeF6.

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  6. Between F2 and Cl2 which has more oxidising power and why?

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  7. Write three anomalous behaviour of Nitrogen.

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  8. Write three properties of oxygen by which it differs from its family m...

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  9. How do you account for the following : Sulphur is paramagnetic in vapo...

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  10. How do you account for the following : Enthalpy of dissociation of Cl2...

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  11. On heating a compound A gives compound 'B' which is a constituent of a...

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  12. Fluorine has less -ve value of electron gain enthalpy than chlorine. E...

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  13. Why are the Gr-18 elements called as inert gases ?

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  14. Write two uses of Helium.

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  15. Give the preparation of XeF2 and XeF4.

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  16. Discuss the trends in properties of hydrides of Gr-16 family (any thre...

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  17. How is SO2 prepared in the laboratory?

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  18. Describe the laboratory method of preparation of sulphur dioxide. How ...

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  19. How does SO2 react with Mg metal

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  20. How does SO2 react with acidified K2Cr2O7

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