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Question -

What modification can you suggestin the Hardy-Schulze law?



Answer -

Hardy-Schulze law states that‘the greater the valence of the flocculating ion added, the greater is itspower to cause precipitation.’

Thislaw 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-Schulze law can be modified in terms of the polarising power of theflocculating ion. Thus, the modified Hardy-Schulze law can be stated as ‘thegreater the polarising power of the flocculating ion added, the greater is itspower to cause precipitation.’

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