Types of Mixtures

What is a characteristic of homogeneous mixtures?

• The components are unevenly distributed
• The composition is different in different regions
• The particles are not evenly dispersed
• The physical and chemical properties are consistent throughout

What is the significance of the Tyndall effect in colloids?

• It allows the visualization of particles
• It allows light to pass through without scattering
• It helps in the separation of components
• It causes the particles to evenly disperse

What are the characteristics of heterogeneous mixtures?

• Uniform distribution of particles, visually indistinguishable, no variations in color or composition, separated using chemical means
• Varying physical and chemical properties, no formation of separate phases, visually indistinguishable, separated using chemical means
• Uniform distribution of particles, visually indistinguishable, variations in color or composition, separated using physical means
• Varying physical and chemical properties, formation of separate phases, visually distinguishable, separated using physical means

What are the physical and chemical properties of colloids?

• Uniform particle sizes, no scattering of light, no changes in appearance, separated using chemical means
• Intermediate particle sizes, scattering of light, changes in appearance, separated using physical means
• Uniform particle sizes, scattering of light, changes in appearance, separated using physical means
• Intermediate particle sizes, no scattering of light, no changes in appearance, separated using chemical means

Which type of mixture can be separated by filtration?

• Heterogeneous mixture
• Homogeneous mixture
• Colloidal mixture
• None of the above

What is a physical property of homogeneous mixtures?

• Different composition
• Uneven distribution
• Different phases
• Transparency

Which of the following is an example of a homogeneous mixture?

• Sand and water
• Granola cereal
• Saltwater
• Oil and water

Which type of mixture has visible boundaries between its components?

• Homogeneous mixture
• Colloidal mixture
• Heterogeneous mixture
• None of the above

How can the components in a colloid be separated?

• Filtration
• Decantation
• Centrifugation
• Magnetic separation

Which type of mixture is a suspension?

• Homogeneous mixture
• Colloidal mixture
• Heterogeneous mixture
• None of the above