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If the electronegativity difference between two atoms A and B is 2.0, then the percentage of ionic character in the molecule is

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Important Questions on Classification of Elements and Periodicity in Properties

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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications
For Na+, Mg2+, F- and O2-, the correct order of increasing ionic radii is:
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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications
The correct order of electronegativity for given elements is
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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications
Identify the element that forms amphoteric oxide:
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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications
In which of the following options the order of arrangement does not agree with the variation of property indicated against it?
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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications
Given that ionization potential and electron gain enthalpy of chlorine are 13eV and 4eV respectively. The electronegativity of chlorine on Mulliken scale, approximately equals to
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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications
The ionic radii (in  Å) of N3-, O2-  and  F-  are respectively:
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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications
The correct order of atomic radii in group 13 elements is
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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications
Which of the following represents the correct order of increasing first ionization enthalpy for Ca, Ba, S, Se and Ar ?
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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications
Which of the following indicates the correct variation in eletronegativities?
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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications
Most electronegativity element in the periodic table
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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications
When the first electron gain enthalpy (ΔHeg) of oxygen is -141 kJ/mol , its second electron gain enthalpy is:
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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications
Identify the correct order of electronegativity for Mg,B,Si and S.
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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications
The correct order of atomic radii is:
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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications
In general, the properties that decrease and increase down a group in the periodic table, respectively, are :
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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications
The first ionisation potential of Na is 5.1 eV. The value of electron gain enthalpy of Na + will be :
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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications
Which element has the highest first ionization potential?
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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications
The species Ar, K+ and Ca2+  contain the same number of electrons. In which order do their radii increase?
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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications
The most electronegative element from the following elements is:
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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications
The electronegativity of the given elements increases in the order
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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications
The electronegativities of N, C, Si and P are in the order -