Analytical ChemistryHard
Question
An aqueous solution contains both Al3+ & Zn2+.To this solution NH4OH is added in excess.
Options
A.Only Al(OH)3 will be precipitated.
B.Only Zn(OH)2 will be precipitated.
C.Both will be precipitated.
D.No precipitate will appear.
Solution
In excess of NH4OH, precipitate of Zn(OH)2 gets dissolved.
Zn(OH)2 + 4NH3 ⇋ [Zn(NH3)4]2+ + 2OH-.
Zn(OH)2 + 4NH3 ⇋ [Zn(NH3)4]2+ + 2OH-.
Create a free account to view solution
View Solution FreeMore Analytical Chemistry Questions
Which of the following reagents can be used for making the distinction between AgCl and AgI ?...Select the correct statement(s)....Consider the following statements ; S1 : white fumes of boric acid are evolved if borax is heated with concentrated H2SO...The reagents, NH4Cl and aqueous NH3 will precipitate :...Ferric alum gives deep red colour with NH4SCN due to the formation of :...