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There are four complexes of Ni. Select the complex(es) which will be attracted by magnetic field :
(I) \( \left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-} \)
(II) \( \left[\mathrm{NiCl}_{4}\right]^{2-} \)
(III) \( \mathrm{Ni}\left(\mathrm{CO}_{4}\right) \)
P
(a) I only
(b) IV only
(c) II, III and IV
(IV) \( \left[\mathrm{Ni}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{2+} \)
W
(d) II and IV
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