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In the structure of HNO3 molecule, N-O b...

In the structure of HNO3 molecule, N-O bond (121 pm) is shorter that N-OH bond (140 pm). why?

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MODERN PUBLICATION-p-BLOCK ELEMENTS-EXERCISE
  1. Complete the following chemical reaction equation : P4+ NaOH + H2O rar...

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  2. Complete the following reaction : XeF2+ H2O rarr

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  3. In the structure of HNO3 molecule, N-O bond (121 pm) is shorter that N...

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  4. Explain the following situation : XeF2 has a linear structure and not ...

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  5. Which of the following noble gases form maximum compounds :

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  6. Out of white phosphorus and red Phosphorus, which one is More reactive...

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  7. Draw the Structural formulae of molecules of the following compound : ...

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  8. Draw the Structural formulae of molecules of the following compound : ...

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  9. Answer the question in one word- Name one alloy which is made up alumi...

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  10. SF6 is kinetically inert substance. Explain.

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  11. All the five bonds in PCl5 are not equivalent justify.

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  12. How would you account for the following : Sulphur has a great tendency...

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  13. Why ammonia is a stronger base than phosphine?

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  14. Why SF6 is known but OF6 is not known

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  15. Why is phosphorus solid and reactive, bnut nitrogen is a gas and inert...

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  16. Why SF6 is known but SH6 is not known ?

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  17. Answer the question in one word- Name that alloy which is made up of z...

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  18. Answer the following question in one word- Name one alloy which is use...

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  19. Nitrogen forms number of oxides in different oxidation states. Write t...

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  20. Boiling point of H2O (373 K) is very much higher than that of H2S (213...

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