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InterviewSolution
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Why is the electron gain enthalpy of O or F less than that of S or Cl?A. O and F are more electronegative than S and Cl.B. When an electron is added to O or F,it goe to a smaller(n=2) level and suffers more repulsion than the electron in S or Cl in larger level(n=3)C. Adding an electron to 3p-orbital leads to more rpulsion than 2p-orbital.D. Electron gain enthalpy depends upon the electron affinity of the atom. |
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Answer» Correct Answer - B There is more repulsion for the incoming electron when the size of atom is smaller. |
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