Types of Mixtures Based on Particle Size

Q.

Milk of Magnesia is an example of :

1. Emulsion

2. True solution

3. Colloid

4. Suspension

Q.

Is milk a collid or suspension?

Q.

The zig - zag motion exhibited by the colloidal particles is known as:

1. Brownian movement

2. Filtration

3. Tyndall effect

4. Precipitation

Q.

Compare true solution, suspension, and colloids in terms of

(i) filterability

(ii) stability

Q.

Name the mixture whose particles are large enough to scatter light.

1. True solutions

2. Homogeneous solution

3. All of the above

4. Colloid

Q. White gold used in jewellery contains two elements, gold and palladium. A jeweller has two different samples of white gold that are both identical in appearance and have a uniform composition throughout. What can be said about the samples?

1. They are homogeneous mixtures and be classified as metallic alloys
2. The samples have variable compositions and are classified as metallic solutions.
3. The materials are heterogeneous mixtures and can be classified by their components
4. The samples are heterogeneous mixtures that can be separated using magnetic properties.

Q.

Difference between difuse and disperse

Q. What is homogeneous mixture?

Q.

Milk:liquid:curd:

Q.

About $0.5\mathrm{g}$ of soil was taken in a test-tube and to this, $10\mathrm{mL}$ of water was added. The mixture was shaken thoroughly and was allowed to stand in a test tube stand. The mixture was filtered. Which of the following is correct regarding the filtrate?

1. The filtrate is a suspension

2. The filtrate is a colloidal solution

3. The filtrate is a true solution

4. The filtrate is neither a true solution nor a colloidal solution

Q.

Difference between suspension and colloid.

Q.

When do particles aggregate to form micelles?

Q.

Four students prepared mixtures in water by taking sugar, sand, chalk powder and starch respectively, in four different test tubes. After stirring, the mixture that appeared clear and transparent was that of:

1. starch and water

2. chalk powder and water

3. sand and water

4. sugar and water

Q.

A colloidal solution is homogeneous in nature.

1. True
2. False

Q.

List any three points of differences between true solution, colloidal solution and suspension

Q. Arrange the following in the decreaing order of their particle size:
suspension, true solution and colloids

1. True solution > Colloidal > Suspension
2. Suspension > True solution > Colloidal
3. True solution > Suspension > Colloidal
4. Suspension > Colloidal > True solution

Q.

How are sol, solution and suspension different from each other?

Q.

Difference between colloidals and suspensions

Q.

if blood is a homogenous mixture then how can it be called as a suspension rather than being as solution as solution are the only ones that are homogenous in nature ????

Q. The scattering of light by colloidal particles is known as the Tyndall effect.

1. True
2. False

Q.

What is the size of the particles in suspension?

Q.

Differentiate between a Suspension and a colloid.

Q.

The small strip of red colored paper is pasted on the inner side of the test tube. The content of the test tube is given alongside.

Observe the color paper through the other side of the test tube through the liquid.

1. The colored strip is clearly seen in A but not in B and C.

2. The colored strip is clearly seen in B but not in A and C.

3. The colored strip is clearly seen in C but not in A and B.

4. The colored strip is clearly seen in A and B but not in C.

Q.

Differentiate between Colloidal solution and Suspension.

Q. Identify the correct statement(s) with respect to a suspension and a colloidal solution:

1. In a suspension, the particles cannot be seen with the naked eye whereas in a colloidal solution, they can be.
2. In suspension, the particles can be seen with naked eye whereas in a colloidal solution, they cannot be.
3. Both can scatter light and make its path visible.
4. Only Suspension can scatter light and colloidal solutions cannot.

Q. White gold used in jewellery contains two elements, gold and palladium. A jeweller has two different samples of white gold that are both identical in appearance and have a uniform composition throughout. What can be said about the samples?

1. They are homogeneous mixtures and be classified as metallic alloys
2. The materials are heterogeneous mixtures and can be classified by their components
3. The samples have variable compositions and are classified as metallic solutions.
4. The samples are heterogeneous mixtures that can be separated using magnetic properties.

Q. The cause of Brownian movement is:

1. Convection current.
2. Heat changes in liquid state.
3. Impact of molecules of dispersion medium on colloidal particles.
4. Attractive forces between particles of the dispersed phase and dispersion medium.

Q. (a) How will you distinguish a colloid from a solution ?
(b) What is Tyndall effect? Does true solution exhibit Tyndall effect.

Q. State three differences between suspensions and colloids.