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If the ionization enthalpy and electron ...

If the ionization enthalpy and electron gain enthalpy of an element are 275 and 86 kcal `mol^(-1)` respectively, then the electronegativity of the element on the Pauling scale is

A

`1.0`

B

`2.8`

C

`4.0`

D

`3.5`

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The correct Answer is:
B
`D to` excess bond energy in Kcal `mol^(-1)`.
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NARAYNA-CLASSIFICATION OF ELEMENTS AND PERIODICITY -EXERCISE - 2 (C.W)
  1. The ionisation energy and electron affinity of an element are 13.0ev a...

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  2. The electronegativity of cesium is 0.7 and that of flourine is 4.0 The...

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  3. If the ionization enthalpy and electron gain enthalpy of an element ar...

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  4. Calculate the effective nuclear charge experienced by the 4s-electron ...

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  5. Which of the following element is most electropositive?

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  6. Which of the following elements has zero electron affinity ?

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  7. The first ionization energy value of an element area 191, 578,872 and ...

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  8. Which of the following elements represents highly electropositive as w...

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  9. Although metals form basic oxides, which of the following metals form ...

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  10. The order in which the following oxides are arranged according to decr...

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  11. An element of atom mass 39 has the electron configuration 2,8,8,1 whic...

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  12. Match the entries of Column I with appropriate entries of Column II an...

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  13. Match the entries of Column I with appropriate entries of Column II an...

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  14. Match the entries of Column I with appropriate entries of Column II an...

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  15. Which of the following sequences contain atomic numbers of only repres...

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  16. Which of the following elements will gain one electron more readily in...

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  17. Which of the following statements are correct ?

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  18. Which of the following sets contain only isoelectronic ions?

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  19. In which of the following options order of arrangement does not agree ...

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  20. Which of the following have no unit?

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