What is a solution that isn't a lyophilic colloid?

1. Milk

2. Gum

3. Fog

4. Blood

An example of intrinsic colloid is:

1. As₂S₃ sol                         

2. Fe(OH)₃ sol

3. egg albumin                     

4. Au sol

Tails of comets are visible due to:

1. Tyndall effect

2. Reflection

3. Brownian motion

4. None of the above

Bleeding is stoped by the application of ferric chloride. This is because :

1. the blood starts flowing in the opposite direction

2. the blood reacts and a solid is formed which seals the blood vessel

3. the blood is coagulated and the blood vessel are sealed

4. the ferric chloride seals the blood vessel

A dust storm is:

1. Dispersion of solid in gas

2. Dispersion of a gas in solid

3. Dispersion of solid in solid

4. Dispersion of a gas in liquid

Medicines are more effective if they are used in:

1. Colloidal state

2. Solid-state

3. Solution state

4. None of the above 

Hydrolysis of cane-sugar is catalysed by:

1. H⁺                         

2. mineral acids

3. enzymes                 

4. all of these

What does the name "aquadag" refer to?

1. Cu in water sol.

2. Pt in water sol.

3. Graphite in water sol.

4. None of the above.

What results are obtained from adding FeCl₃ to K₄[Fe(CN)₆] in a diluted, cold solution?

1. Prussian blue sol.                     

2. Fe₄[Fe(CN)₆]₃ sol.

3. Positive sol.                               

4. All of the above.

How is the flocculation value expressed?

1. Millimole per litre.

2. Mole per litre.

3. Gram per litre.

4. Mole per millilitre.