Order of electron gain enthalpy for a set of elements

1. A.
   $S > Se > Te > O$
2. B.
   $O > S > Se > Te$
3. C.
   $S > O > Se > Te$
4. D.
   $Te > Se > S > O$

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1. A.
   $F < Cl < Te < Po$
2. B.
   $Po < Te < F < Cl$
3. C.
   $Te < Po < Cl < F$
4. D.
   $Cl < F < Te < Po$

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1. A.
   $He < Kr < Xe < Ne$
2. B.
   $He < Xe < Kr < Ne$
3. C.
   $He < Ne < Kr < Xe$
4. D.
   $Xe < Kr < Ne < He$

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1. A.
   $\Delta_{eg}H(Te) < \Delta_{eg}H(Po)$
2. B.
   $\Delta_{eg}H(Se) < \Delta_{eg}H(S)$
3. C.
   $\Delta_{eg}H(Cl) < \Delta_{eg}H(F)$
4. D.
   $\Delta_{eg}H(I) < \Delta_{eg}H(At)$

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1. A.
   $Ne$ and $F$
2. B.
   $Ne$ and $Cl$
3. C.
   $Ar$ and $Cl$
4. D.
   Ar and F

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1. A.
   C $>$ B $>$ D $>$ A
2. B.
   A $>$ D $>$ B $>$ C
3. C.
   A $>$ D $>$ C $>$ B
4. D.
   D $>$ C $>$ B $>$ A

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