1.

The correct order of radiii is/are:

Answer»

`Pb gt Pb^(2+) gt Pb^(4+)`
`In^(+) gt Sn^(2+) gt Sb^(3+) gt Te^(4+)`
`CO gt Ni gt Cu gt ZN`
`K^(+) gt Li^(+) gt Mg^(2+) gt Al^(3+)`

Solution :The correct ORDER of radii: `Co ~~ Ni lt Cu lt Zn`


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