Free Properties of Liquids MCQs with Answers
145 Properties of Liquids MCQs from Chemistry, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Liquid behavior depends on intermolecular forces, which produce surface tension, viscosity, capillary action and a definite volume without a fixed shape. The topic also covers vapor pressure, evaporation, boiling point and the effect of temperature and external pressure, while distinguishing evaporation at the surface from boiling throughout the liquid.
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145 questions · page 5 of 8
- A. Speed of atoms
- B. Motion of particles
- C. Distance b/w molecules
- D. All of these options are correct
Explanation: OPTION A: The intermolecular forces are dependent on the distribution of electrons and the shape of the molecules, not on the speed of…
Correct answer: Distance b/w molecules- A. Heat
- B. Order
- C. Hotness
- D. Coldness
Explanation: OPTION A: The turbid liquids are called liquid crystals due to the presence of ordered molecular arrangements, not due to the presence of…
Correct answer: Order- A. N2
- B. Cl2
- C. O2
- D. I2
Explanation: OPTION A: In comparison, N2 (Nitrogen) has a smaller size and fewer electrons, making it less polarizable.OPTIONS B, C: Cl2 (chlorine) and…
Correct answer: I284. Liquids have _.
- A. Definite mass
- B. Definite shape
- C. Definite volume
- D. None of these options is correct
Explanation: Liquids do not have a definite shape but have a "definite volume". Unlike solids, liquids adopt the shape of the container.
Correct answer: Definite volume- A. Dipole-dipole forces
- B. Debye forces
- C. London dispersion forces
- D. H-bonding
Explanation: London Dispersion Forces are also known as "instantaneous dipole" induced dipole interactions created by the momentary forced of…
Correct answer: London dispersion forces- A. Chemical properties of a substance
- B. Kinetic properties of a substance
- C. Thermodynamic properties of a substance
- D. Nature of a substance
Explanation: Dipole forces have a direct relation with the thermodynamic properties of a substance.
Correct answer: Thermodynamic properties of a substance- A. Pressure
- B. Temperature
- C. Mass
- D. Nature
Explanation: When the temperature of molecules increases, they gain energy and move and collide more, hence temperature is directly proportional to…
Correct answer: Temperature- A. The electronegativity difference is higher
- B. The electronegativity difference is less
- C. The molecules are far from each other
- D. The lectronegativity difference is zero
Explanation: Greater electronegativity difference means the molecule is polar, hence polar molecules have permanent dipole-dipole that are stronger…
Correct answer: The electronegativity difference is higher- A. Water & ethanol
- B. Water & acetone
- C. Water & pentane
- D. Water & chloroform
Explanation: Pentane is an organic compound that is non-polar and water is a polar molecule, hence they won't mix together because water cannot form…
Correct answer: Water & pentane- A. Lower than gases
- B. Higher than solids
- C. Lower than solids
- D. Both Options A and B are correct
Explanation: This option is correct. Both statements in options a) and b) are accurate based on the typical arrangements of particles in liquids and…
Correct answer: Both Options A and B are correct- A. More than 1
- B. Two
- C. Three
- D. Four
Explanation: Liquid crystals can be classified into three main categories: thermotropic liquid crystals, lyotropic liquid crystals, and metallotropic…
Correct answer: Three- A. Opposite poles
- B. Polar part
- C. Non-polar part
- D. Positive end
Explanation: The cleansing action of both soaps and detergents results from their ability to lower the surface tension of water, to emulsify oil or…
Correct answer: Polar part- A. Dipole-dipole forces
- B. Ion dipole forces
- C. H-bond
- D. Debye force
Explanation: Forces that are present between ions and water molecules are called ion-dipole forces.
Correct answer: Ion dipole forces- A. Dipole-Dipole
- B. Induced dipole
- C. Dipole-induced dipole
- D. Spontaneous-induced dipole
Explanation: This cumulative dipole-induced dipole (London forces) interaction creates attractive forces.
Correct answer: Spontaneous-induced dipole- A. Motion of liquid molecules
- B. Intermolecular forces between the molecules
- C. Kinetic energy of the molecules
- D. Mass of the molecules
Explanation: When the kinetic energy of molecules becomes maximum, a stage comes when the temperature is no longer increased and this heat energy is…
Correct answer: Intermolecular forces between the molecules- A. Gases to liquids
- B. Liquids to solids
- C. Both A & B
- D. None of these
Explanation: London forces are directly related to the mass of the molecules. So the attractive force between higher hydrocarbons is more.
Correct answer: Both A & B- A. Chemical properties
- B. Physical properties
- C. Composition
- D. Nature
Explanation: The strength of the intermolecular forces determines the physical properties of the substance such as their state at room temperature…
Correct answer: Physical properties- A. Electrons
- B. Electronic cloud
- C. Lone pair on an atom
- D. Poles of atoms
Explanation: Option B is correct since the London dispersion force is a temporary attractive force that results when the electrons in two adjacent…
Correct answer: Electronic cloud- A. NH3.
- B. H2O.
- C. HF.
- D. CH4.
Explanation: Methane (CH4) has the least polarizability of these molecules because it is a nonpolar molecule.
Correct answer: CH4.- A. Chemical bond
- B. Intramolecular force
- C. Van der Waal forces
- D. Strong forces
Explanation: The intermolecular forces are typically referred to as Van der Waals forces.
Correct answer: Van der Waal forces