Q. No.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. FeCl3 + 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 |
Match the statement given in Column I with the phenomenon given in Column II.
| Column I | Column II |
| A. Dispersion medium moves in an electric field | 1. Osmosis |
| B. Solvent molecules pass through a semi-permeable membrane towards the solvent side | 2. Electrophoresis |
| C. Movement of charged colloidal particles under the influence of applied electric potential towards oppositely charged electrodes | 3. Electroosmosis |
| D. Solvent molecules pass through semi-permeable membranes towards the solution side | 4. Reverse osmosis |
Codes
| A | B | C | D | |
| 1. | 2 | 3 | 4 | 1 |
| 2. | 1 | 2 | 3 | 4 |
| 3. | 3 | 4 | 2 | 1 |
| 4. | 4 | 1 | 3 | 2 |
The method of formation of the solution is given in Column I. Match it with the type of solution given in Column II.
| Column I | Column II |
| (A) Sulphur vapours passed through cold water | 1. Normal electrolyte solution |
| (B) Soap mixed with water above critical micelle concentration | 2. Molecular colloids |
| (C) White of egg whipped with water | 3. Associated colloid |
| (D) Soap mixed with water below critical micelle concentration | 4. Macromolecular colloids |
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 |
Match the items of Column I and Column II.
|
Column I |
Column II |
|
A. Whipped cream B. Pumice stone C. Milk D. Paints |
1. Dispersion of liquid in liquid 2. Dispersion of solid in liquid 3. Dispersion of gas in solid 4. Dispersion of gas in liquid |
Codes
| Options: | A | B | C | D |
| 1. | 2 | 3 | 4 | 1 |
| 2. | 1 | 2 | 3 | 5 |
| 3. | 5 | 4 | 3 | 2 |
| 4. | 4 | 3 | 1 | 2 |
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 |
Select the correct option based on statements below:
| Assertion (A): | Detergents with low CMC are more economical to use. |
| Reason (R): | The cleansing action of detergents involves the formation of micelles. These are formed when the concentration of detergents becomes equal to CMC. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | (A) is false but (R) is true. |
Select the correct option based on statements below:
| Assertion (A): | The coagulation power of Al3+ is more than Na+. |
| Reason (R): | Greater the valency of the flocculating ion added, the greater is its power to cause precipitation (Hardy-Schulze rule) |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | (A) is false but (R) is true. |
Select the correct option based on statements below:
| Assertion (A): | Colloidal solutions do not show Brownian motion. |
| Reason (R): | Brownian motion is responsible for the stability of sols. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | (A) is false but (R) is true. |
Which of the following phenomenon occurs when a chalk stick is dipped in ink?
a. Adsorption of coloured substance
b. Adsorption of solvent
c. Absorption and adsorption both of solvent
d. Absorption of solvent
The correct choice among the given is -
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
The electrolytes with maximum coagulating value for Ag/Ag+ sol is:
1. Na2S
2. Na3PO4
3. Na2SO4
4. NaCl
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