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Nitrogen exists as diatomic molecule and...

Nitrogen exists as diatomic molecule and phosphorous as `P_4`.

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ASSAM ACADEMIC CENTRE-The p-Block Elements-Example
  1. Why does NH3 form hydrogen bond but PH3 does not?

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  2. Explain why NH3 is basic while BiH3 is only feebly basic.

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  3. Nitrogen exists as diatomic molecule and phosphorous as P4.

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  4. Sulphur is a solid while oxygen is a gas at room temperature why?

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  5. Name a aerosol that depletes ozone.

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  6. Why are halogens coloured?

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  7. Write balanced equations for the following: NaCl is heated with sulphu...

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  8. Write balanced equations for the following: Chlorine gas is passed int...

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  9. In the contact process for the manufacture of H2SO4 some amount of sul...

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  10. Why SO2 is a better reducing agent in alkaline medium as compared to t...

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  11. Account for the following Thermal stability of water is much higher th...

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  12. Why is white phosphorous more reactive than red phosphorous?

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  13. PH3 has lower boiling point than NH3. Why?

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  14. Account for the following: F2 is a strong oxidising agent.

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  15. Account for the following: the acidic strength of the hydrides of gro...

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  16. Answer the following: Ozone acts as a powerful oxidizing agent. Give r...

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  17. Complete the following chemical reaction equations: P4 + NaOH + H2O ra...

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  18. Complete the following chemical reaction equations: I^(-)(aq) + H2O(l)...

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  19. Account for the following Thermal stability of water is much higher th...

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  20. Why is white phosphorous more reactive than red phosphorous?

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