The group reagent for group \( \mathrm{V} \) cations is- P (1) \( \...

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The group reagent for group \( \mathrm{V} \) cations is-
P
(1) \( \mathrm{H}_{2} \mathrm{~S} \) gas in presence of dil. \( \mathrm{HCl} \)
W
(2) \( \mathrm{NH}_{4} \mathrm{OH} \) in presence of \( \mathrm{NH}_{4} \mathrm{Cl} \)
(3) \( \mathrm{H}_{2} \mathrm{~S} \) is presence of \( \mathrm{NH}_{4} \mathrm{OH} \)
(4) \( \left(\mathrm{NH}_{4}\right)_{2} \mathrm{CO}_{3} \) in presence of \( \mathrm{NH}_{4} \mathrm{OH} \)
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