The spherical shape of rain droplets is due to-
1. Viscosity
2. surface tension
3. Critical phenomenon
4. Pressure
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyGases possess characteristic critical temperature which depends upon the magnitude of intermolecular forces between the particles. Following are the critical temperatures of some gases.
Gases | H2 | He | O2 | N2 |
The critical temperature in Kelvin | 33.2 | 5.3 | 154.3 | 126 |
From the above data, the order of liquefaction of the given gases is-
(write the order from the gas liquefying first)
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWith increase in temperature the surface tension of a liquid will:
1. Remains same
2. Decreases
3. Increases
4. No regular pattern is followed
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIncrease in kinetic energy can overcome intermolecular forces of attraction. How will increase in temperature effect the viscosity of liquid-
1. Increase
2. No effect
3. Decrease
4. No regular pattern will be followed
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAmong water, ether, and acetone, water has the maximum boiling point and ether has the minimum boiling point. The correct order of vapour pressure of water, acetone and ether at is-
1. Water<ether<acetone
2. Water<acetone<ether
3. Ether<acetone<water
4. Acetone<ether<water
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe SI unit of viscosity coefficient is-
1. Pascal
2. Nsm-2
3. km-2s
4. Nm-2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAtmospheric pressure recorded in different cities are as follows
Cities | p in N/m2 |
Shimla | |
Bangalore | |
Delhi | |
Mumbai |
The liquid will boil first at -
1. Shimla
2. Bangalore
3. Delhi
4. Mumbai
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAs per Charles's law ,–273° C is the lowest possible temperature because:
1. | All gases get liquefied before reaching a temperature of – 273° C. |
2. | All gases get liquefied after reaching a temperature of – 273° C. |
3. | All gases have a critical temperature of –273° C. |
4. | None of the Above. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMaximum deviation from ideal gas is shown by-
1. H2(g)
2. N2(g)
3. CH4(g)
4. NH3(g)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct statement regarding the van der Waal constant of N2 & NH3 is -
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology