The group reagent for third group is \( \mathrm{NH}_{4} \mathrm{OH} \) in presence of - (A) \( \...

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The group reagent for third group is \( \mathrm{NH}_{4} \mathrm{OH} \) in presence of -
(A) \( \left(\mathrm{NH}_{4}\right)_{2} \mathrm{CO}_{3} \)
(B) \( \mathrm{NaCl} \)
(C) \( \left(\mathrm{NH}_{4}\right)_{2} \mathrm{SO}_{4} \)
(D) \( \mathrm{NH}_{4} \mathrm{Cl} \)
\( P \)
W.
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