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What happends when water is dropped over...

What happends when water is dropped over `Na_(2)O_(2)` ?

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`O_(2)` is evolved
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(a). What is the neture of the oxide SO_(2) ? What happens when it is dissolve din water? Write the chemical equation fot he reaction involved. (b). What is the nature of the oxide Na_(2)O ? What happens when it is dissolved in water? Write the chemical equation of the reaction involved.

DINESH PUBLICATION-THE P-BLOCK ELEMENTS -Problems For Practice
  1. Give two examples of mixed oxides.

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  2. What is the nature of the following oxides : (i) CO (ii) Al(2)O(3) (...

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  3. What happends when water is dropped over Na(2)O(2) ?

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  4. Why is O(3) more reactive than O(2) ?

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  5. Name two compounds in which oxygen has oxidation states different from...

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  6. How does sulphur normally exist ?

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  7. What is the hybridisation of sulphur in H(2)SO(4) ?

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  8. What is oil of vitriol ?

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  9. What is the IUPAC name of H(2)S(4) gas ?

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  10. What is the oxidation state of sulphur in (i) PbS (ii) SO(2) (iii) SO(...

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  11. What happens to sugar when conc. H(2)SO(4) is dropped on it ?

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  12. Which allotropic form of sulphur is not sharp melting ?

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  13. Which chemical is used to remove a fresh iodine stain ?

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  14. What are the colours of the following sulphides ? (i) CoS (ii) CuS (...

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  15. Out of 1 M H(2)SO(4) and 1 N H(2)SO(4), which is more concentrated an...

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  16. Which substance removes As(2)O(3) in contact process ?

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  17. Name the halogens that can form true chemical bonds with noble gases?

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  18. Give two compounds in which iodine behaves as a cation.

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  19. Hybridisation and shape of BrF(5) is :

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  20. Why does fluorine fail to be exhibit variable oxidation states ?

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