Which of the following happens when NH4OH is added gradually to the solution containing 1M A2+ and 1M B3+ ions ?
Given : Ksp [A(OH)2] = 9 × 10–10 and
Ksp [B(OH)3] = 27 × 10–18 at 298 K.
1
B(OH)3 will precipitate before A(OH)2
2
A(OH)2 and B(OH)3 will precipitate together
3
A(OH)2 will precipitate before B(OH)3
4
Both A(OH)2 and B(OH)3 do not show precipitation with NH4OH