The group III cations is/are- P (1) \( \mathrm{Al}^{3+} \) (2) \( \...

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The group III cations is/are-
P
(1) \( \mathrm{Al}^{3+} \)
(2) \( \mathrm{Fe}^{3+} \)
W
(3) \( \mathrm{Ni}^{2+} \)
(4) Both (1) and (2)
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