1.

Incorrect order of ionic size is:

Answer»

`La^(3+) gt GD^(3+) gt EU^(3+) gt Lu^(3+)`
`V^(2+) gt V^(3+) gt V^(4+) gt V^(5+)`
`Tl^(+) gt In^(+) gt Sn^(2+) gt Sb^(3+)`
`K^(+) gt Sc^(3+) gt V^(5+) gt Mn^(7+)`

Solution :Correct order: `La^(3+) gt Gd^(3+) gt Eu^(3+) gt Lu^(3+)`.


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