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Elements of gr-16 generally show lower v...

Elements of gr-16 generally show lower value of first ionisation enthalpy compared to the corresponding periods of gr-15. Why?

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Elements of group-16 generally show lower value of first ionisation enthalpy compared to the corresponding periods of group-15. Why?

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CHHAYA PUBLICATION-P-BLOCK ELEMENTS-SOLVED CBSE SCANNER
  1. Explain the following: Nitrogen is much less reactive than phosphoru...

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  2. Explain the following: NF(3) is an exothermic compound but NCl(3) is...

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  3. Elements of gr-16 generally show lower value of first ionisation entha...

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  4. What happens when- concentrated H(2)SO(4) is added to CaF(2)?

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  5. What happens when- sulphur dioxide reacts with chlorine in the presenc...

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  6. What happens when- ammonium chloride is treated with Ca(OH)(2) ?

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  7. Draw the structure of the following: BrF(3)

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  8. Draw the structure of the following: XeO(3)

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  9. Answer the following: Why is NH(3) more basic than PH(3) ?

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  10. Answer the following: Why are halogens strong oxidising agents?

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  11. Answer the following: Draw the structure of XeOF(4).

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  12. Account for the following: Ozone is thermodynamically unstable.

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  13. Account for the following: Solid PCl(5) is ionic in nature.

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  14. Account for the following: Fluorine forms only one oxoacid HOF.

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  15. Draw the structure of- BrF(5)

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  16. Draw the structure of- XeF(4)

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  17. Compare the oxidising action of F(2) and Cl(2) by considering paramete...

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  18. Write the conditions to maximise the yield of H(2)SO(4) by contact pro...

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  19. Arrange the following in the increasing order of property mentioned: ...

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  20. Arrange the following in the increasing order of property mentioned: ...

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