Stoichiometry

111. Colligative properties of a dilute solution are those which depend entirely upon the

1. Constitution of the solute
2. Chemical composition of the solute
3. Number of solute molecules contained in a given volume of the solvent
4. None of these

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112. Colligative properties of a dilute solution are those, which depend entirely upon the

1. Chemical composition of the solute
2. Constitution of the solute
3. Number of solute molecules contained in a given volume of the solvent
4. None of these

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113. Compressibility factor of a real gas is the ratio of the actual volume to that predicted by ideal gas law. As the pressure of the gas approaches zero, the compressibility factor approaches

1. ∞
2. 0
3. 1
4. 0.24

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114. Concentration of a solution expressed in terms of _________ is independent of temperature.

1. Molarity
2. Normality
3. Molality
4. None of these

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115. Density of carbon dioxide is _________ kg/Nm³.

1. 44/22400
2. 44/22.4
3. 22.4/44
4. None of these

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116. Diffusion is that property by virtue of which a perfume bottle when opened up in a room, makes the whole room fragrant with its smell. If a perfume 'X' diffuses twice as fast as another perfume 'Y'; what is the molecular weight of 'Y', if the vapor density of gas 'X' is 2? Molecular weight of gas 'X' is to be assumed to be 2.

1. 2
2. 4
3. 8
4. 16

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117. Disappearance of snow in subzero weather exemplifies the process of

1. Evaporation
2. Sublimation
3. Vaporisation
4. Melting

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118. Dissolving a solute in a solvent does not change its

1. Specific heat
2. Vapour pressure
3. Viscosity
4. None of these

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119. Dry air is a mixture of

1. Vapors
2. Gases
3. Both (A) & (B)
4. Neither (A) nor (B)

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120. During a phase change process like sublimation, vaporisation, melting etc., the specific _________ does not change.

1. Enthalpy
2. Gibbs free energy
3. Internal energy
4. Entropy

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