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12th Class Chemistry Sample Paper Chemistry Sample Test Paper-1

  • question_answer
      What modification can you suggest in the Hardy-SchuIze law?                                                                    (Value Based)

    Answer:

                      Hardy-SchuIze law states that the greater the valence of the flocculating ion added, the greater is its power to                 cause precipitation. This law takes into consideration only the charge carried by an ion, not its size. The smaller the size of an ion, the more will be its polarising power. Thus, Hardy-SchuIze law can be modified in terms of the polarising power of the flocculating ion. Thus, the modified Hardy- SchuIze law can be stated as 'the greater the polarising power of the flocculating ion added, the greater is its power to cause precipitation.                                                                    3


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