A Concentrated Buffer of PH 8

Multiple Choice

A concentrated buffer of pH 8.0 is added to an equal volume of a solution that is 0.080 M in each of the ions Zn²⁺, Ni²⁺, and Mn²⁺. The expected precipitate would consist of ________. salt: zinc hydroxide nickel hydroxide manganese hydroxide
Ksp 1.2 × 10^-17   2.0 × 10-¹⁵   1.9 × 10^-13

A) Zn(OH) ₂, Ni(OH) ₂ and Mn(OH) ₂
B) Ni(OH) 2 and Mn(OH) 2
C) Mn(OH) ₂
D) Ni(OH) ₂ and Zn(OH) ₂
E) Zn(OH) ₂