Question

Solubility product of Ba(OH), and Al(OH),
are 1.8x10-10 and 2.4x10-20 respectively. If
both A13+ and Ba+2 ions are present in a
solution, which one will be ppt on addition of
Ammonium hydroxide solution
1) Ba(OH), 27 Al(OH),
3) Both are precipitated at same time
4) Both are not precipitated​

Answer 1

Answer:Ba(OH)

Explanation: ammonium hydroxide has common ion effect hence it will precipitate both but not at the same time

This is because condition of ppt is

Q>Ksp

Comparing the given data the Q of Ba(OH) is more than Al(OH) hence baoh precipitates