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BF(3) does not obey octet rule, yet it e...

`BF_(3)` does not obey octet rule, yet it exists -explain.

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CHHAYA PUBLICATION-CHEMICAL BONDING AND MOLECULAR STRUCTURE-SHORT-TYPE QUESTIONS
  1. The lattice energy of MgO is greater than NaF-why?

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  2. Unlike CaF(2),CaCl(2) is soluble in water-why?

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  3. BF(3) does not obey octet rule, yet it exists -explain.

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  4. Ionic compounds having cations and anions with higher charge are insol...

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  5. Explain why the reaction between NaCl nd AgNO(3) is fast but the react...

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  6. Define coordination number with suitable example.

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  7. What type of bond will be formed between two elements with similar ele...

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  8. Explain the given order of solubility of silver halides in water: AgF ...

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  9. Give the states of hybridisation of central atoms of PC l(4)^(+)&XeOF(...

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  10. Arrange the following in increasing order of bond angle around the cen...

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  11. Explain why the axial bonds in PC l(5) are longer than the equatorial ...

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  12. CO(2) is non-polar but COS is polar, even though both of them are line...

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  13. Tropone (cycloheptatrienone, ) is highly poalr (mu=4.17D) in nature-w...

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  14. Explain whether the compounds 1,3,5-tribromobenzene and 2,4,6-trichlor...

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  15. The boiling point of cis-1,2-dichloethene is higher than that of tis t...

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  16. Ethanol boils at a higher temperature than diemthyl ether, even though...

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  17. Which of the following have zero dipole moment and why? CO(2),CHCl(3...

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  18. H(2)O is a liquid but H(2)S is a gas-why?

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  19. PH(3) is less soluble in water compound to NH(3)-why?

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  20. What is the effect of the following ionisation process on the bond ord...

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