JEE Main & Advanced Chemistry Hydrogen & Its Compounds Question Bank Water or hydride of oxygen

  • question_answer The alum used for purifying water is [EAMCET 1999]

    A) Ferric alum

    B) Chrome alum

    C) Potash alum

    D) Ammonium alum

    Correct Answer: C

    Solution :

    \[{{K}_{2}}S{{O}_{4}}.A{{l}_{2}}{{(S{{O}_{4}})}_{3}}.24{{H}_{2}}O\] Potash alum is generally used for purifying water.

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