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Which of the following doesn’t follow ef...

Which of the following doesn’t follow effective atomic number rule ?

A

`[Cu(NH_(3))_(4)]^(+2)`

B

`[Zn(OH)_(4)]^(-2)`

C

`[HgI_(4)]^(2-)`

D

`Fe(CO)_(5)`

Text Solution

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The correct Answer is:
A
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