What is the formula of potash alum?
Answer & explanation
Correct answer: option 2
The correct answer is option 2. K2SO4.Al2(SO4)3.24H2O.
Potash alum is also known as potassium alum or potassium aluminium sulfate. The chemical formula of potash alum is K2SO4.Al2(SO4)3.24H2O. It is also commonly referred to as ‘fitkari.’