1.

Which of thefollowingspecieshas thehighestelectronaffinity ?

Answer»

`F^(-)`
`O `
`O^(-)`
`Na^(+)`

Solution :Electronaffinityis THEAMOUNT ofenergyreleased . Now energyis releasedwhen Oacceptsan electron.Butenergyhas to be spentwhenan electron adds to`F^(-) ,O^(-)` and `Na^(+)`. Thusoption (B) is CORRECT.


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