The correct statements among the following are :

a. Mixing two oppositely charged sols neutralizes their charges and stabilizes the colloid.
b. The presence of equal and similar charges on colloidal particles provides stability to the colloids.
c. Any amount of dispersed liquid can be added to the emulsion without destabilizing it.
d. Brownian movement stabilizes sols.

1. (a, b)

2. (b, c)

3. (c, d)

4. (b, d)

Subtopic:  Emulsions |
 52%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

An emulsion cannot be broken by ............. and ................

1. Heating.

2. Adding more amount of dispersion medium.

3. Freezing.

4. Centrifugation

Subtopic:  Emulsions |
 63%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Substances among the following that can precipitate the negatively charged emulsions are-

a.  KCI

b.  Glucose

c.  Urea

d.  NaCl

1. (a, b)

2. (b, c)

3. (c, d)

4. (a, d)

Subtopic:  Emulsions |
 76%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Match the types of colloidal systems given in Column I with the names given in Column II.

Column I Column II
A. Solid in Liquid 1. Foam
B. Liquid in solid 2. Sol
C. Liquid in Liquid 3. Gel
D. Gas in Liquid 4. Emulsion

Codes

A B C D
1. 2 3 4 1
2. 1 2 3 4
3. 1 4 3 2
4. 4 1 3 2
Subtopic:  Emulsions |
 91%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Match the items in Column I and Column II.

Column I Column II
A. Dialysis 1. Cleansing action of soap
B. Peptization 2. Coagulation
C. Emulsification 3. Colloidal sol formation
D. Electrophoresis 4. Purification

Codes

A B C D
1. 2 3 4 1
2. 1 2 3 4
3. 1 4 3 2
4. 4 3 1 2
Subtopic:  Colloidal Solution | Emulsions |
 84%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Match the items given in Column I and Column II.

Column I Column II
A. Protective colloid 1. FeCl3 + NaOH
B. Liquid-liquid colloid 2. Lyophilic colloids
C. Positively charged colloid 3. Emulsion
D. Negatively charged colloid 4. FeCl+ hot water

Codes

A B C D
1. 3 2 4 1
2. 1 4 3 2
3. 2 3 4 1
4. 4 1 3 2

Subtopic:  Emulsions |
 90%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh