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What is inert-pair effect? Illustrate wi...

What is inert-pair effect? Illustrate with an example.

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ICSE-SOME P-BLOCK ELEMENTS -SHORT ANSWER TYPE QUESTIONS
  1. How do the Metallic character property vary on moving down the group 1...

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  2. Why are the second and third ionisation energies of group 13 elements ...

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  3. What is inert-pair effect? Illustrate with an example.

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  4. Why does the stability of + 3 oxidation state decrease on moving down ...

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  5. Atomic size increases down a group of the periodic table. Explain.

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  6. Why does gallium have higher ionisation energy than aluminium?

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  7. Boron does not form ionic compounds containing B^(2+) ions. Comment on...

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  8. In the structure of diborane,

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  9. Why do boron halides act as Lewis acids ?

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  10. Arrange BF3, BCl3, B Br3, BI3 in the decreasing order of Lewis acid ch...

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  11. Why is boron trifluoride a weaker Lewis acid as compared to B Br3 and ...

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  12. Discuss the structure of aluminium chloride.

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  13. Inspite of being electron deficient, boron halides do not exist as dim...

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  14. What type of oxides are formed by group 13 elements and how does their...

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  15. Why does boron differ from other elements of its own group in several ...

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  16. Boron does not form [BF6]^(3-), whereas aluminium forms [AlF6]^(3-). E...

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  17. Mention any four properties which show that boron shows diagonal relat...

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  18. Why are the melting and boiling points of C and Si much higher as comp...

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  19. The ionisation energy decreases on moving down the group 14. Explain

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  20. The first ionisation energy of carbon is much higher than that of sili...

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