Chemistry Test 2
Total Questions: 25
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A ) Barium
B ) Uranium
C ) Uranium-238
D ) Helium ✅
A ) Vander Walls forces
B ) Covalent attraction
C ) Hydrogen bond formation ✅
D ) Dipole dipole attraction
A ) Weak dissociation of water molecule
B ) Hydrogen bonding among water molecules ✅
C ) Its high specific heat
D ) Its high dielectric constant
A ) Solid State of ice
B ) Its low density
C ) Crystalline nature
D ) Hydrogen bonding ✅
A ) Higher than the critical temperature
B ) Lower than its critical temperature ✅
C ) Equal to its critical temperature
D ) None
A ) Molecules are elastic
B ) There is no gap between molecules
C ) These are lighter than liquids
D ) There is a large space between the molecules ✅
A ) Joule Thomson effect ✅
B ) Adiabatic demagnetism
C ) Faraday Tyndall effect
D ) Compton effect
A ) Plasmolysis
B ) Sedimentation ✅
C ) Reverse osmosis
D ) Diffusion
A ) Water evaporates more easily
B ) The temperature of water increase
C ) The freezing point of water is lowered ✅
D ) The viscosity of water is lowered
A ) Atmosphere pressure is low
B ) Temperature is low
C ) Atmosphere pressure is high ✅
D ) Water is cold
A ) Heat is more evenly distributed ✅
B ) B. P. of water inside the cooker is increased
C ) The high pressure tenderises the food
D ) A longer flame is used
A ) Gas disperses in liquid
B ) Gas dispersed in solid ✅
C ) Solid dispersed in gas
D ) Solid dispersed in solid
A ) A liquid is dispersed in a liquid ✅
B ) A solid is dispersed in a liquid
C ) A gas is dispersed in a liquid
D ) Some sugar is dispersed in a liquid
A ) Formic acid solution
B ) Formaldehyde solution ✅
C ) Acetic acid solution
D ) Acetaldehyde solution
A ) Interfacial area
B ) High molecular weight
C ) Ionisation
D ) Emulsifying properties ✅
A ) To prevent formation of colloidal solution
B ) To stabilize the colloids and prevent crystal growth ✅
C ) To improve the flavour
D ) To increase the bulk
A ) Hydrolysis
B ) Oxidation
C ) De-emulsification
D ) Emulsification ✅
A ) Energy of activation differs from one reactant to another ✅
B ) Some of the reactants are solids at room temperature
C ) Some of the reactants are coloured
D ) All are correct
A ) Maximum in vapour state ✅
B ) Maximum in solid state
C ) Greater in the liquid than in vapour state
D ) Same in all the three states
A ) Oxidation, reduction ✅
B ) Reduction, oxidation
C ) Reduction, hydrolysis
D ) Oxidation, hydrolysis
A ) Supplies electrons ✅
B ) Withdraw electrons
C ) Undergoes oxidation
D ) None is correct
A ) Decreases
B ) Increases ✅
C ) Remains unchanged
D ) May decrease or increase
A ) Is denser than ordinary water
B ) Is an oxide of deuterium ✅
C ) Has a heavy or bad tastes
D ) Has a heaver isotopes of hydrogen
A ) Increases ✅
B ) Decreases
C ) Remains same
D ) None
A ) Increases
B ) Decreases ✅
C ) Increases and then decreases
D ) Remains constant