Scales of Electronegativity
Trending Questions
Q. The electronegativity values of C, N, O and F on Pauling scale:
- Decrease from carbon to fluorine.
- Increase from carbon to fluorine.
- Increase upto oxygen and then decrease upto fluorine.
- Decrease from carbon to nitrogen and then increase continyously.
Q. Ionisation energy and electron affinity of fluorine are respectively 17.42 and 3.45 eV. Calculate the electronegativity of fluorine atom on Pauling's scale.
- 2.726
- 2.762
- 3.726
- 3.762
Q. The X -X bond length is 1.5 ∘A and Y - Y bond length is 2.54 ∘A. If electronegativities of 'X' and 'Y' are 3.5 and 2.0 respectively, the X - Y bond length is likely to be
- 2.02∘A
- 1.44∘A
- 2.88∘A
- 1.88∘A
Q. The X -X bond length is 1.5 ∘A and Y - Y bond length is 2.54 ∘A. If electronegativities of 'X' and 'Y' are 3.5 and 2.0 respectively, the X - Y bond length is likely to be
- 2.02∘A
- 1.44∘A
- 2.88∘A
- 1.88∘A
Q. Which of the following elements is the least metallic?
- Scandium (Sc)
- Platinum (Pt)
- Palladium (Pd)
- Mangenese (Mn)
Q. The concept of electronegativity is not applicable to an element having which of the following outer shell configurations?
- ns2np5
- ns2np4
- ns2np3
- ns2np6
Q. Which of the following statements is true regarding Pauling and Mulliken scale of electronegativity?
- Pauling's electronegativity is obtained from bond energy parameters
- Mulliken's electronegativity is obtained from ionization energy and electron affinity of individual atoms
- Mulliken's electronegativity can be obtained by multiplying Pauling's electronegativity by 2.8
- All of the above
Q. On Pauling’s electronegativity scale, which element is next to F?
- Cl
- Br
- O
- Ne
Q. Which one of the following statements is/are correct?
- Due to high electronegativity and tendency to gain electrons, halogens are good reducing agents.
- The elements having low values of ionisation energies act as strong reducing agent.
- The formation of Be−(g) from Be(g) is an endothermic process.
- None of the above.
Q. The electronegativity values of C, N, O and F on Pauling scale:
- Decrease from carbon to fluorine.
- Increase from carbon to fluorine.
- Increase upto oxygen and then decrease upto fluorine.
- Decrease from carbon to nitrogen and then increase continyously.
Q.
How does the metallic character of elements vary in a
Group of the periodic table?
Q.
Pauling's electronegativity values for elements are useful in predicting?
Polarity of the molecules
Position in the electrochemical series
Coordination number
Dipole moments
Q. Considering the elements Ca, Ge, Mg, Ga and K, the correct increasing order of their metallic character is:
- Ca<Ge<Mg<Ga<K
- Ca<Ge<K<Mg<Ga
- Ge<Ga<Mg<Ca<K
- Ge<Ga<K<Ca<Mg
Q. Mark the neutral oxide among the following.
- N2O3
- N2O
- CO
- CO2