Analytical ChemistryHard

Question

What final product(s) is/are formed in the following series of  reactions ?
Concentrated borax solution + silver nitrate solution → Precipitate Products (final)

Options

A.Ag3BO3
B.Ag2O
C.H3BO3
D.AgBO2

Solution

B4O72- + 4Ag+ + H2O →  4AgBO2 ↓ (white) + 2H+
2AgBO2 ↓ + 3H2O Ag2O↓ (brown) + 2H3BO3

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