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Explain why ionic compounds are hard...

Explain why
ionic compounds are hard and brittle?

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ICSE-CHEMICAL BONDING AND MOLECULAR STRUCTURE-REVIEW EXERCISES
  1. Explain why ionic compounds possess very high melting and boiling ...

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  2. Explain why ionic compounds are soluble in water but insoluble in or...

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  3. Explain why ionic compounds are hard and brittle?

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  4. Explain why An ionic bond cannot be formed between theatoms of the ...

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  5. Explain why lonic reactions are very fast.

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  6. What is octet rule? illustrate it with some examples.

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  7. Write Lewis structures of the following species : Cl^(-) ,O2^(-) ,...

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  8. Explain the formation of CaF2 molecule.

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  9. What type of elements do form ionic bonds and why?

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  10. What do you understand by variable electrovalency? Give atleast two ex...

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  11. What are the optimum conditions for the formation of a covalent bond?

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  12. Explain the formation of following molecules : PCl3 ,CH4 ,H2 O , PH3...

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  13. What do you understand by covalency? Find the covalency of the underli...

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  14. What do you understand by covalency? Find the covalency of the underli...

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  15. What do you understand by covalency? Find the covalency of the underli...

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  16. What do you understand by covalency? Find the covalency of the underli...

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  17. How would you explain the variable covalency of chlorine? Explain givi...

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  18. Phosphorus exhibits a covalency of 3 in PCI3 while of 5 in PCI5. How w...

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  19. Explain the following: Covalent solids are usually soft.

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  20. Explain the following: Covalent compounds are insoluble in water.

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