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Elements of which part of the periodic t...

Elements of which part of the periodic table exhibit greater tendency to form covalent bonds and why?

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CHHAYA PUBLICATION-CHEMICAL BONDING AND MOLECULAR STRUCTURE-WARM UP EXERCISE
  1. Draw lewis dot structure of H(3)PO(4) and CO(3)^(2-).

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  2. Calculate formal change on N-atom in HNO(3) molecule.

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  3. Elements of which part of the periodic table exhibit greater tendency ...

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  4. Molecules of covalent compounds exhibit isomerism-why?

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  5. In which of the given molecules the central atom does not obey the oct...

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  6. What do you understand by polarisation of an anion and when does it ta...

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  7. The melting point of MgBr(2) is 700^(@)C while that of AlBr(3) is only...

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  8. Why is CuCl more covalent than NaCl?

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  9. Arrange in the increasing order according to the given properties and ...

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  10. (i) Explain why AgCl is white in colour whereas AgI is yellow. (ii) if...

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  11. LiCl is soluble in organic solvents while the chlorides of other alkal...

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  12. Give reasons: (i) PbCl(4) exists but PbI(4) does not, (ii) SnCl(2) is ...

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  13. What is coodinate covalent bond or coodinate bond?

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  14. Explain the formation of a coordinate bond with example.

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  15. Mention the conditions for coordinate bond formation.

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  16. Why is a coordinate bond referred to as a semipolar bond?

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  17. Aluminium chloride exists as a dimer-explain.

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  18. Give examples of two compounds in which there exists electrovalency, c...

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  19. Explain why BF3 forms addition compound with NH3 .

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  20. AlCl(3) forms a dimer but BC l(3) cannot-explain.

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