Question

A solution when diluted with H₂O and boiled, gives a white precipitate. On addition of excess NH₄Cl/NH₄OH, the volume of precipitate decreases leaving behind a white gelatinous precipitate. Identify the precipitate which dissolves in NH₄OH/NH₄Cl (a) Al (OH)₃(b) Zn(OH)₂(c) Ca(OH)₂(d) Mg(OH)₂

Answer 1

Al(OH)3 is the answer becoz, it is gelatinous white in colour..