1.

Consider the following reaction: (i) O_((g))+e^(-) to O_((g))^(-),DeltaH_(1) (ii) F_((g))+e^(-) to F_((g))^(-),DeltaH_(2) (iii) Cl_((g))+e^(-) to Cl_((g))^(-),DeltaH_(3) (iv) O_((g))^(-) +e^(-) to O_((g))^(2-),DeltaH_(4) then according to given information the correct statement is/are:

Answer»

`DeltaH_(3)` is more NEGATIVE than `DeltaH_(1) and DeltaH_(2)`
`DeltaH_(1)` is LESS negative than `DeltaH_(2)`
`DeltaH_(1),DeltaH_(2) and DeltaH_(3)` are negative whereas `DeltaH_(4)` is positive
`DeltaH_(1) and DeltaH_(3)` are negative whereas `DeltaH_(2) and DeltaH_(4)` positive

Solution :`DeltaH_(1),DeltaH_(2) and DeltaH_(3)` are negative whereas `DeltaH_(4)` is positive.


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