Which of the following mixtures can be separated by using an NH3 solution? — Qualitative and Quantitative Analysis Chemistry Question

💡 Solution & Explanation

Both Al3+ and Zn2+ precipitate as hydroxides with NH3 solution, but Zn(OH)2 dissolves in excess NH3 forming the soluble [Zn(NH3)4]2+ complex, whereas Al(OH)3 remains insoluble.