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How Would You React to the Statement that the Electronegativity of N on Pauling Scale is 3.0 in All the Nitrogen Compounds? - Chemistry

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ConceptPeriodic Trends in Physical Properties of Elements Electronegativity

Question

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

Solution 1

Electronegativity of an element is a variable property. It is different in different compounds. Hence, the statement which says that the electronegativity of N on Pauling scale is 3.0 in all nitrogen compounds is incorrect. The electronegativity of N is different in NH3 and NO2.

Solution 2

On Pauling scale, the electronegativity of nitrogen, (3.0) indicates that it is sufficiently electronegative. But it is not correct to say that the electronegativity of nitrogen in all the compounds is 3. It depends upon its state of hybridisation in a particular compound, greater the percentage of s-character, more will be the electronegativity of the element. Thus, the electronegativity of nitrogen increases in moving from SP3hybridised orbitals to SP hybridised orbitals i.e., as SP< SP2 < SP.

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 NCERT Solution for Chemistry Textbook for Class 11 (2018 to Current)
Chapter 3: Classification of Elements and Periodicity in Properties
Q: 23 | Page no. 93

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Solution How Would You React to the Statement that the Electronegativity of N on Pauling Scale is 3.0 in All the Nitrogen Compounds? Concept: Periodic Trends in Physical Properties of Elements - Electronegativity.
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