The 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 & BiologyThe correct statements among the following about solid catalysts is -
a. | Same reactants may give different products by using different catalysts |
b. | Catalyst does not change ∆ H of reaction |
c. | Catalyst is required in large quantities to catalyse reactions |
d. | Catalytic activity of a solid catalyst does not depend upon the strength of chemisorption |
1. a and b
2. b and c
3. c and d
4. a and d
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAt the equilibrium position in the process of adsorption ..........
1. ΔH > 0
2. ΔH = TΔS
3. ΔH > TΔS
4. ΔH < TΔS
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe process that does not occur at the interface of phases is :
1. Crystallisation
2. Heterogeneous catalysis
3. Homogeneous catalysis
4. Corrosion
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe interface that cannot be obtained is
1. Liquid-liquid
2. Solid-liquid
3. Liquid-gas
4. Gas-gas
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe term ‘sorption’ stands for.........
1. Absorption
2. Adsorption
3. Both absorption and adsorption
4. Desorption
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyExtent of adsorption of adsorbate from the solution phase increases with:
1. Increase in amount of adsorbate in solution.
2. Decrease in surface area of adsorbent.
3. Increase in temperature of solution.
4. Decrease in amount of adsorbate in solution.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich one of the following is not applicable to the phenomenon of adsorption?
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPhysical adsorption is not favoured by :
1. High pressure.
2. Negative H
3. Higher critical temperature of adsorbate.
4. High temperature.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyExtent of physisorption of a gas increases with ......
1. Increase in temperature.
2. Decrease in temperature.
3. Decrease in surface area of adsorbent.
4. Decrease in strength of van der Waals’ force.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology