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X^(+),Y^(2+)and Z are isoelectronic wit...

`X^(+),Y^(2+)and Z` are isoelectronic with `CO_(2)` . Increasing order of protons in `X^(+),Y^(2+)` and Z is :

A

`X^(+)=Y^(2+)=Z`

B

`X^(+)ltY^(2+)ltZ`

C

`ZltX^(+)ltY^(2+)`

D

`Y^(2+)ltX^(+)ltZ`

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