1.

Mark out the correct increasing order of radius.

Answer»

`As^(3-)ltBr^(-) lt K^(+) lt Mg^(2+)`
`Mg^(2+) lt K^(+) lt Br^(-) lt As^(3-)`
`Mg^(2+)ltK^(+)ltAs^(3-) lt Br^(-)`
`K^(+) lt Mg^(2+) lt Br^(-) lt As^(3-)`

ANSWER :B


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