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Which of the following represents the correct order of increasing electron gain enthalpy (with negative sign) for the elements O, S, F and Cl?
A
Cl < F < O < S
B
O < S < F < Cl
C
F < S < O < Cl
D
S < O < Cl < F
Explanation
Group 17 ΔegH (kJ mol–1) F –328 Cl –349 Group 16 ΔegH (kJ mol–1) O –141 S –200
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