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How would yon react to the statement that the electronegativity of N on Pauling scale is 3.0 in all the nitrogen compounds?

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The statement is ambiguous because the electronegativity of an atom is not constant in all of its compounds. It varies with the state of hybridisation and oxidation state. For example, the electronegativity of N in `NO_(2)` and NO is different due to difference in the oxidation states.
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ICSE-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-NCERT TEXT-BOOK. EXERCISE (With Hints and Solutions)
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  18. The first (Delta(i), H(1)) and the second (Delta, H(2)) ionisation ent...

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  19. The first (Delta(i), H(1)) and the second (Delta, H(2)) ionisation ent...

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  20. The first (Delta(i), H(1)) and the second (Delta, H(2)) ionisation ent...

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