2. Questions Bank
  3. JEE Main & Advanced
  4. Chemistry
  5. Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन

JEE Main & Advanced Chemistry Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन Question Bank Colloids Emulsion, Gel and Their properties with application

  • question_answer
    Ferric hydroxide sol is positively charged colloid. The coagulating power of \[NO_{3}^{-},\,SO_{4}^{2-}\] and \[PO_{4}^{3-}\] ions would be in the order

    A)                 \[NO_{3}^{-}>SO_{4}^{2-}>PO_{4}^{3-}\]           

    B)                 \[SO_{4}^{2-}>NO_{3}^{-}>PO_{4}^{3-}\]

    C)                 \[PO_{4}^{3-}>SO_{4}^{2-}>NO_{3}^{-}\]           

    D)                 \[NO_{3}^{-}=SO_{4}^{2-}=PO_{4}^{3-}\]

    Correct Answer: C

    Solution :

                    According to Hardy schulze rule the ions having opposite charge to sol particle cause coagulation and greater the valency of oppositely charged ion more is the coagulating power \[(PO_{4}^{3-}>SO_{4}^{2-}>NO_{3}^{-}\]).


You need to login to perform this action.
You will be redirected in 3 sec spinner