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What type of oxides are formed by group ...

What type of oxides are formed by group 13 elements and how does their acidic character vary on moving down the group ?

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ICSE-SOME P-BLOCK ELEMENTS -SHORT ANSWER TYPE QUESTIONS
  1. Why is boron trifluoride a weaker Lewis acid as compared to B Br3 and ...

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  2. Discuss the structure of aluminium chloride.

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

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

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

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

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

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

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

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

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  11. Why is the ionisation energy of lead slightly higher than that of tin?

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  12. The electronegativity remains almost constant in going from Si to Pb. ...

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  13. Explain the difference in properties of diamond and graphite on the ba...

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  14. What do you understand by catenation ? How does the property vary in g...

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  15. What are the common oxidation states exhibited by the elements of grou...

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  16. Why does lead prefer to exist in +2 oxidation state instead of +4 alth...

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  17. The tetrahalides of carbon do not form complexes, whereas the tetrahal...

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  18. Explain giving reasons the following: C Cl4 is not hydrolysed with ...

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  19. Explain, why CO2 is a gas but SiO2 is a solid.

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  20. What are silicones and what are their important properties?

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