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What are the shapes of PH(3) molecule an...

What are the shapes of `PH_(3)` molecule and `PH_(4)^(+)` ion ?

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`PH_(3)` is pyramidal , `PH_(4)^(+)` is tetrahedral
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DINESH PUBLICATION-THE P-BLOCK ELEMENTS -Problems For Practice
  1. In the ring test for NO(3)^(-) ion, what is the chemical formula of th...

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  2. Which oxide of nitrogen becomes brown when released in air ?

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  3. What are the shapes of PH(3) molecule and PH(4)^(+) ion ?

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  4. What is the maximum oxidation state shown by nitrogen in its compounds...

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  5. What is the nature of N^(3-) ion ?

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  6. Apart from N(2)O which other colourless gas supports combustion ?

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  7. What is the nature of the following reaction ? P(4)+3NaOH+3H(2)O to ...

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  8. How many (P-O) bonds are present in (i) P(4)O(6) (ii) P(4)O(10) ?

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  9. Out of O(2) " and " O(3) which is a better oxidising agent ?

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  10. What is the shape of ozone molecule ?

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  11. Select the acidic and basic anhydrides from the following : (i) Na(2...

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  12. Give two examples of mixed oxides.

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

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

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

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

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  17. How does sulphur normally exist ?

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

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  19. What is oil of vitriol ?

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

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