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General Everyday Science and Ability QUESTION #248
Question 1
The chemical formula for alum is:
  • KAl(SO4​)2​⋅12H2​O✔️
  • KSi(SO4​)2​⋅12H2​O
  • KAl(SO4​)2​⋅8H2​O
  • None of these
Correct Answer Explanation
Potassium alum is a double sulfate of potassium and aluminum with 12 water molecules.+2