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The electronegativity difference between N and F is greater than that between N and H yet the dipole moment of NH3(1.5D) is larger than that of NF3(0.2D). This is because.

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Important Questions on Chemical Bonding and Molecular Structure

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In which of the following molecules, are all the bonds not equal?
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In which of the following pairs, the two species are isostructural?
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The correct order of C-O bond length among CO,CO32- and CO2 is: 
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In which of the following the hydration energy is higher than the lattice energy?
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Four diatomic species are listed below in different sequences. Which of these presents the correct order of their increasing bond order? 
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The correct order of increasing bond angles in the following triatomic species is:
 
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In which of the following molecules/ions BF3, NO2-, NH2- and H2O, the central atom is sp2 hybridised? 
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According to MO theory which of the following lists rank the nitrogen species in terms of increasing bond order?