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Which of the following exhibits only +3 ...

Which of the following exhibits only +3 oxidation state?

A

`U`

B

`Th`

C

`Pa`

D

`Ac`

Text Solution

Verified by Experts

The correct Answer is:
D
Ac`(Z=89)` electronic configuration `[Rn]6d^(1)7s^(2)` shows `+3` oxidation state only.
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