Alum helps in purifying water by:

1. Forming Si complex with clay particles.

2. Sulphate part which combines with the dirt and removes it.

3. Aluminium which coagulates the mud particles.

4. Making mud water soluble.

Subtopic:  Colloidal Solution |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Which of the following does not form anionic micelle?

1. C12H25COONa                   

2. C12H25SO4Na

3. C12H25SO3Na                     

4. C12H25(NH3)3Cl

Subtopic:  Emulsions |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Milk can be preserved by adding a few drops of:

1. formic acid solution             

2. formaldehyde solution

3. acetic acid solution             

4. acetaldehyde solution

Subtopic:  Emulsions |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


When a catalyst is added to a system the:

1. equilibrium concentrations are increased

2. equilibrium concentrations are unchanged

3. the rate of forward reaction is increased and that of backward reaction is decreases

4. value of the equilibrium constant is decreased

Subtopic:  Catalyst |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Clouds, mist, fog and aerosols are colloidal solution of:

1. solid in a gas

2. gas in a solid

3. liquid in a gas

4. gas in a liquid

Subtopic:  Colloidal Solution |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Gold number is the index for:

1. protective power of lyophilic colloid

2. purity of gold

3. metallic gold

4. electroplated gold

Subtopic:  Colloidal Solution | Lyophilic & Lyophobic Sol |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Silver iodide is used for producing artificial rain because AgI:

1. is easy to spray at high altitudes

2. is easy to synthesize

3. has crystal structure similar to ice

4. is insoluble in water

Subtopic:  Adsorption and Absorption |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Which is an emulsion?

1. Boot polish                             

2. Lipstic

3. Shampoo                               

4. All of these

Subtopic:  Emulsions |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Egg albumin is:

1. reversible colloid

2. lyophilic colloid

3. protective colloid

4. all of these

Subtopic:  Colloidal Solution |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Which acts as a promoter for nickel in the hydrogenation of oils?

1. Cu

2. Mo

3. Fe

4. Pt

Subtopic:  Catalyst |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level: