1.

The correct order of ionic radii of the following species is

Answer»

`Se^(2-) GT I^(-) gt BR^(-) gt O^(2-) gt F^(-)`
`I^(-) gt Se^(2-) gtO^(2-) gt F^(-)`
Se^(2-) gt I^(-) gt Br^(-) gt F^(-) gt O^(2-)
`I^(-) gt Se^(2-) gt Br^(-) gt O^(2-) gt F^(-)`

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