Advertisements
Advertisements
प्रश्न
Which of the following will show Tyndall effect?
विकल्प
Aqueous solution of soap below critical micelle concentration.
Aqueous solution of soap above critical micelle concentration.
Aqueous solution of sodium chloride.
Aqueous solution of sugar.
Advertisements
उत्तर
Aqueous solution of soap above critical micelle concentration.
Explanation:
Aqueous solution of soap above critical micelle concentration leads to the formation of colloidal solution. Tyndall effect is a characteristic of colloidal solution in which colloidal particles show a coloured appearance when sunlight is passes through it and seen perpendicularly.
APPEARS IN
संबंधित प्रश्न
Out of MgCl2 and AlCl3, which one is more effective in causing coagulation of negatively charged sol and why?
Define the following term : Brownian movement
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.
Explain what is observed when an electrolyte NaCl is added to hydrated ferric oxide sol.
Explain the term Electrophoresis
Explain the terms Coagulation
Explain the terms Dialysis
What happens when a freshly prepared precipitate of Fe(OH)3 is shaken with a small amount of FeCl3 solution?
What happens when an emulsion is centrifuged?
A colloidal sol is prepared by the given method in the figure. What is the charge on hydrated ferric oxide colloidal particles formed in the test tube? How is the solution represented?
The values of colligative properties of colloidal solution are of small order in comparison to those shown by true solutions of same concentration because of colloidal particles ______.
What is Gold number?
Which of the following is used for removing change on colloidal solution?
The important factor in the stabilization of a colloidal solution is ______
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:
6.84 g Al2(SO4)3 is needed to coagulate 2.5 L of As2S3 sol completely in 2.0 hrs. The coagulation value of Al2 (SO4)3 is ______.
