Solved papers for JEE Main & Advanced AIEEE Solved Paper-2002

done AIEEE Solved Paper-2002 Total Questions - 1

• question_answer1) Alum is widely used to purify water since   AIEEE  Solved  Paper-2002
  A)
  it forms complex with clay particles
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  B)
  it coagulates the mud particles
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  C)
  it exchanges \[C{{a}^{2+}}\] and \[M{{g}^{2+}}\] ions present in hard water
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  D)
  its sulphate ion is water purifier
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