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Centrifugation in Colloidal Solutions

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Questions and Answers

What type of colloid is formed in fog, clouds, and mist?

Emulsion
Foam
Gel
Aerosol (correct)

Which of the following is an example of a solid-gas colloid?

Smoke (correct)
Shaving cream
Milk
Butter

What type of colloid is milk of magnesia?

Foam
Gel
Emulsion
Sol (correct)

In the context of colloids, what is the dispersing medium in a foam colloid?

Gas (D) Signup and view all the answers

Which of the following is NOT an example of a solid-solid colloid?

Jelly (D) Signup and view all the answers

What type of colloid is created by shaving cream?

Foam (A) Signup and view all the answers

What are the components of a colloidal solution?

Dispersed phase and dispersion medium (C) Signup and view all the answers

How are colloids classified?

According to the state of the dispersed phase and dispersion medium (A) Signup and view all the answers

What is one of the properties of a colloid?

Colloids scatter light and make their path visible (D) Signup and view all the answers

Which type of mixture is a colloid?

Heterogeneous mixture (C) Signup and view all the answers

What happens to colloids when left undisturbed?

They remain stable and do not settle down (D) Signup and view all the answers

What is the solute-like component in a colloid called?

Dispersed phase (B) Signup and view all the answers

What is a characteristic of a colloidal solution?

Particles are uniformly spread throughout the solution (D) Signup and view all the answers

How does the appearance of a colloidal solution differ from a suspension?

Colloidal solution appears homogeneous, while suspension appears heterogeneous (A) Signup and view all the answers

Why is milk considered a colloidal solution?

Because the small particles in milk can scatter light (C) Signup and view all the answers

Which scientist is the Tyndall effect named after?

Tyndall (B) Signup and view all the answers

Why can colloidal particles not be seen with naked eyes?

Because they are too small (B) Signup and view all the answers

How can one observe the Tyndall effect in a room?

By shining a beam of light through a small hole (A) Signup and view all the answers

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