The factors that influence the adsorption of a gas on a solid is/are:
1. Nature of the gas.
2. Surface area of the solid.
3. Effect of pressure.
4. All of the above.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhy is a finely divided substance more effective as an adsorbent?
1. Small surface area.
2. Large surface area.
3. Weak molecular bonding.
4. Strong molecular bonding.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe probable reasons of the exothermic nature of adsorption is:
1. | Adsorption leads to a decrease in the residual forces on the surface of the adsorbent. |
2. | ∆S is negative. |
3. | Both (1) and (2) |
4. | None of the above. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe characteristics associated with adsorption are:
1. ∆G, ∆H, and ∆S are all negative.
2. ∆G and ∆H are negative, but ∆S is positive.
3. ∆G and ∆S are negative, but ∆H is positive.
4. ∆G is negative, but ∆H and ∆S are positive.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statement is false?
1. | Adsorption is a reversible process and is accompanied by a decrease in pressure. |
2. | Adsorption decreases with an increase in pressure. |
3. | Adsorption is an exothermic process. |
4. | The magnitude of physisorption adsorption decreases with an increase in temperature. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWater vapours can be both adsorbed and absorbed by respectively ?
1. Silica gel and
2. Chalk and
3. and Silica gel
4. and Chalk
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe graph between vs log p is given below:
What is the value of the slope?
1.
2. n
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
In the Freundlich adsorption isotherm, the value of 1/n is:
1. Between 0 and 1 in all cases.
2. Between 2 and 4 in all cases.
3. 1 in the case of physical adsorption.
4. 1 in the case of chemisorption.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn adsorption isotherm is a plot between:
1. | The extent of adsorption \(({x \over m})\) against the pressure of gas (P) at constant V. |
2. | The extent of adsorption \(({x \over m})\) against the pressure of gas (P) at constant T. |
3. | The extent of absorption \(({x \over m})\) against the volume of gas (V) at constant P. |
4. | The extent of absorption \(({x \over m})\) against the pressure of gas (P) at constant T. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe equation that represents a Freundlich adsorption isotherm is:
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology