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प्रश्न
State the Hardy-Schulze rule.
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उत्तर
The Hardy-Schulze rule states that the greater the valency of the oppositely charged ion of the electrolyte being added, faster is coagulation. The greater the valency of the flocculating ion, the greater its power to coagulate.
संबंधित प्रश्न
Define the following term:
Zeta potential
What modification can you suggest in the Hardy-Schulze law?
Explain what is observed when a beam of light is passed through a colloidal sol.
Answer the following question.
Why are medicines more effective in the colloidal state?
Which of the following will show Tyndall effect?
Assertion: Coagulation power of Al3+ is more than Na+.
Reason: Greater the valency of the flocculating ion added, greater is its power to cause precipitation (Hardy Schulze rule).
Define coagulation.
Define the following term:
Coagulation
Why a negatively charged sol is obtained when AgNO3 solution is added to KI solution?
The conditions given below are in the context of observing Tyndall effect in colloidal solutions:
- The diameter of the colloidal particles is comparable to the wavelength of light used.
- The diameter of the colloidal particles is much smaller than the wavelength of light used.
- The diameter of the colloidal particles is much larger than the wavelength of light used.
- The refractive indices of the dispersed phase and the dispersion medium are comparable.
- The dispersed phase has a very different refractive index from the dispersion medium.
Choose the most appropriate conditions from the options given below:
