A colloidal system having a solid substance as a dispersed phase and a liquid as a dispersion medium is classified as .........
1. Solid sol
2. Gel
3. Emulsion
4. Sol
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe 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 .........
1. Exhibit enormous surface area
2. Remain suspended in the dispersion medium
3. Form lyophilic colloid
4. Are comparatively less in number
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe process responsible for the formation of delta at a place where rivers meet the sea is
1. Emulsification
2. Colloid formation
3. Coagulation
4. Peptisation
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following process is not responsible for the presence of electric charge on the sol particles?
1. Electron capture by sol particles
2. Adsorption of ionic species from solution
3. Formation of Helmholtz electrical double layer
4. Absorption of ionic species from solution
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct statements among the following are:
a. | Micelle formation by soap in an aqueous solution is possible at all temperatures |
b. | Micelle formation by soap in an aqueous solution occurs above a particular concentration |
3. | On dilution of soap solution micelles may revert to individual ions |
4. | Soap solution behaves like a normal strong electrolyte at all concentrations |
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPhenomenon that occurs when an electric field is applied to a colloidal solution and electrophoresis is prevented-
a. Reverse osmosis takes place
b. Electroosmosis takes place
c. Dispersion medium begins to move
d. Dispersion medium becomes stationary
The correct choice among the given is -
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAt high concentration of soap in water, soap behaves as .......
1. Molecular colloid.
2. Associated colloid.
3. Macromolecular colloid.
4. Lyophilic colloid.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTyndall effect is shown by
1. | Aqueous solution of soap below critical micelle concentration. |
2. | Aqueous solution of soap above critical micelle concentration. |
3. | Aqueous solution of sodium chloride. |
4. | Aqueous solution of sugar. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFreshly prepared precipitate sometimes gets converted to colloidal solution by ......
1. Coagulation
2. Electrolysis
3. Diffusion
4. Peptisation
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe electrolytes with maximum coagulating value for Ag/Ag+ sol is:
1. Na2S
2. Na3PO4
3. Na2SO4
4. NaCl
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology