The first AH and second AH ionisation enthalpies in kJ mol and the electron gain enthalpy AH in kJ mol of the elements I II eg

Question

The first AH and second AH ionisation enthalpies in kJ mol and the electron gain enthalpy AH in kJ mol of the elements I II eg III IV and V are given below Elements A H AgH I 520 60 II 419 48 III 1681 328 IV 1008 295 V 2372 48 The most reactive and the least reactive element amongst these are respectively a I and V c II and V A H 7300 3051 3374 1846 5251 b V and II d IV and V

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