1.

The negative electron gain enthalpy values of halogens follows the order:

Answer»

1.F,CL,BR, I
2 .F,Br,Cl,I
3. Cl,Br,I,F
4. Cl,F,Br,I

Solution :NEGATIVE electron gain enthalpy becomes lessnegative down the group but florine has abnormaly lower negative value than CHLORINE.


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