1.

Correct order of polarising power is

Answer»

`CS^(+)ltK^(+)LTMG^(2+)ltAl^(3+)`
`K^(+)ltCs^(+)ltMg^(2+)ltAl^(3+)`
`Cs^(+)ltK^(+)ltAl^(3+)ltMg^(2+)`
`K^(+)ltCs^(+)ltAl^(3+)ltMg^(2+)`

ANSWER :A


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