Question : 71.              Which of the following statements regarding the liquid state : 1335498

 

 

71.              Which of the following statements regarding the liquid state is incorrect?

A)Liquid water is denser than ice (solid water).

B)The viscosity of a liquid is related to its intermolecular forces—the stronger the forces, the higher the viscosity.

C)As temperature increases, so will the viscosity of a liquid.

D)Substances with strong intermolecular forces have high surface tension.

E)Detergents interfere with the attractive forces among water molecules to lower the surface tension of the water.

 

72.              Which of the following statements regarding the liquid state is incorrect?

A)Detergents increase the surface tension of water, in order to help it stay in droplet form.

B)If ice were denser than liquid water, lakes would freeze from the bottom up.

C)In the summer, one would use a motor oil with a high viscosity rating to better lubricate the engine at high temperatures.

D)A liquid such as C15H32 would be expected to be more viscous than C6H14.

E)Water rises in a glass capillary tube due to the interactions between the water molecules and the glass.

 

73.              Which of the following statements regarding the solid state is incorrect?

A)Solids are not very compressible.

B)Solids have rigid shapes and definite sizes.

C)If a material solidifies in a partially disordered state, it is an amorphous solid.

D)Substances which solidify in a very orderly manner form crystalline solids.

E)Glass is an example of a crystalline solid.

 

74.              Which of the following statements regarding the solid state is incorrect?

A)Most polymers, such as rubbers and plastics, are amorphous.

B)Minerals, such as quartz and amethyst, are crystalline solids.

C)Solids normally do not flow.

D)The particles of a solid are held in a rigid, 3-dimensional array.

E)The arrangement of the particles in a crystal lattice is called space packing.

 

75.              Which of the following is not one of the classifications into which solids can be organized?

A)  metallic    B)  ionic    C)  molecular    D)  liquid crystals    E)  network

 

76.              Which of the following statements regarding the solid state is incorrect?

A)Many metals follow a close-packing arrangement of their atoms, much like the way fruit is stacked in the grocery store.

B)The forces holding the particles together in a solid will affect their properties.

C)Network solids tend to have very high melting points.

D)Nonpolar molecular solids tend to be good conductors of heat and electricity.

E)Ionic solids tend to be brittle.

 

77.              A solid substance has a very high melting point, is very hard, and is a nonconductor whether molten or solid.  This substance is probably a(n)________ solid.

A)  metallic    B)  ionic    C)  network    D)  nonpolar molecular    E)  polar molecular

 

78.              A solid substance has a moderate melting point, is fairly soft, and is a nonconductor. This substance is probably a(n) ________ solid.

A)  metallic    B)  ionic    C)  network    D)  nonpolar molecular    E)  polar molecular

 

79.              A solid substance has a high melting point, is hard, and is a good conductor of both heat and electricity.  It is also malleable and ductile. This substance is probably a(n) ________ solid.

A)  metallic    B)  ionic    C)  network    D)  nonpolar molecular    E)  polar molecular

 

80.              A solid substance has a high melting point, is hard, brittle, and conducts electricity when molten.  This substance is probably a(n)________ solid.

A)  metallic    B)  ionic    C)  network    D)  nonpolar molecular    E)  polar molecular

 

 

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