Alums are useful for a range of industrial processes. They are soluble in water; have an astringent, acid, and sweetish taste. The chemical formula for Alum is -

general knowledge science & technology

  1. KAl(SO4)4.8H2O

  2. KAl(SO4)2.10H2O

  3. KAl(SO4)3.10H2O

  4. KAl(SO4)2.12H2O

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Correct Option: D

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