Question

Real formula of alum

Answer 1

Alum is an hydrated sulfate of alluminium and another monovalent cation. Alum is both a specific chemical compound and a class of chemical compounds. The specific compound is the hydrated potassium aluminium sulphate (potassium alum) with the chemical formula KAl(SO4)2.

Answer 2

Hi here is your answer
aluminium sulphate (potassium alum) with the chemical formula KAl(SO4)2. 12H2O.