1.

Which one of the following ionic species has the greatest proton affinity to form stable compound ?

Answer»

`I^(-)`
`HS^(-)`
`NH_(2)^(-)`
`F^(-)`

Solution :Strongest PROTON affinity will be for the species which is the strongest BASE or whose conjugate acid is the weakest. The conjugate acid out of HI, `H_(2)S,NH_(3)andHF`.


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