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Which of the following species is/are paramagnetic?
`Fe^(2+),Zn^(0),Hg^(2+),Ti^(4+)`
A. Only `Fe^(2+)`
B. `Zn^(0) and Ti^(4+)`
C. `Fe^(2+) and Hg^(2+)`
D. `Zn^(0) and Hg^(2+)`

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Correct Answer - A
Paramagnetic species contain unpaired electrons. Thus , among the given species only `Fe^(2+)(3d^(6))` is paramagnetic.

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