Solubility products of Al(OH)3 and Zn(OH)2 are 2.7×10−23 and 3.2×10−14 respectively. If to a solution of 0.1 M each of Al3+ and Zn2+ions,NH4OH is added in increasing amounts which of the following will be precipitated first ?

Solubility products of Al(OH)3 and Zn(OH)2 are 2.7×10−23 and 3.2×1

1.	Solubility products of Al(OH)3 and Zn(OH)2 are 2.7×10−23 and 3.2×10−14 respectively. If to a solution of 0.1 M each of Al3+ and Zn2+ions,NH4OH is added in increasing amounts which of the following will be precipitated first ?
Answer» Solubility products of $A l (O H)_{3}$ and $Z n (O H)_{2}$ are $2.7 \times 10^{- 23} a n d 3.2 \times 10^{- 14}$ respectively. If to a solution of 0.1 M each of $A l^{3 +} a n d Z n^{2 +} i o n s, N H_{4} O H$ is added in increasing amounts which of the following will be precipitated first ?