The group reagent of group III cations is- \( \mathrm{P} \) (1) \( ...

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The group reagent of group III cations is-
\( \mathrm{P} \)
(1) \( \mathrm{NH}_{4} \mathrm{OH} \) only
W
(2) \( \mathrm{NH}_{4} \mathrm{Cl} \) only
(3) \( \mathrm{NH}_{4} \mathrm{OH} \) in presence of \( \mathrm{NH}_{4} \mathrm{Cl} \)
(4) \( \mathrm{NaOH} \)
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