Match the values of ionization energy and electron gain enthalpy listed in column I with characteristic(s) of elements listed in column II. {:("Column-I","Column-II"),((A)"2372 5251 +48",(p)"Element which acts as a strong reducing agent"),((B)"4193051-48",(q)"Element which exists as a monoatomic molecule"),((C )"16813374-333",(r)"Least reactive non-metal"),((D)"10081846-295",(s)"Element which acts as a strong oxidising agent"),(,(t)"Element which oxides is a stronger basic in nature"):}

Match the values of ionization energy and electron gain enthalpy liste

1.	Match the values of ionization energy and electron gain enthalpy listed in column I with characteristic(s) of elements listed in column II. {:("Column-I","Column-II"),((A)"2372 5251 +48",(p)"Element which acts as a strong reducing agent"),((B)"4193051-48",(q)"Element which exists as a monoatomic molecule"),((C )"16813374-333",(r)"Least reactive non-metal"),((D)"10081846-295",(s)"Element which acts as a strong oxidising agent"),(,(t)"Element which oxides is a stronger basic in nature"):}
Answer» Solution :(A)Inert gas exist as monoatomic molecule. They have highest `IE_1` and `IE_2` and positive electron GAIN enthalpies. (B)Alkali metal -`IE_1` is low because of bigger size of atom and `IE_2` is high due to noble gas configuration . As it has low `IE_1` it can lose one electron easily and THUS more electropositive .So it acts as strong reducing agents and their oxides are basic in nature.They have low negative value of `DeltaH_(eg)` because of large size. (C )`IE_1 and IE_2` both high and negative value of electron gain ENTHALPY is very high because of high nuclear charge and small size of atoms, so it has a greater tendency to accept an ADDITIONAL electron.So it (F) act as a strong oxidising agent. (D)As it has less negative value for `DeltaH_(eg)` than (C )thus it will be least reactive non-metal (I)