Colloidal Solution
High-Yield Trend
Questions 8 MCQs
The protecting power of lyophilic colloidal sol is expressed in terms of:
1. Coagulation value
2. Gold number
3. Critical micelle concentration
4. Oxidation number
The coagulation values in millimoles per litre of the electrolytes used for the coagulation of As2S3 are given below
I. (NaCl) = 52, II. (BeCl2) = 0.69, III. (MgSO4) = 0.22
What is the correct order of their coagulating power?
1. I > II > III
2. II > I >III
3. III > II > I
4. III > I >II
1. The magnitude of the charge on the ion alone
2. Size of the ion alone
3. Both magnitude and sign of the charge on the ion.
4. The sign of the charge on the ion alone.
Which mixture of the solutions will lead to the formation of a negatively charged colloidal [AgI]I- sol?
1. 50 mL of 0.1 M AgNO3 + 50 mL of 0.1 M KI
2. 50 mL of 1 M AgNO3 + 50 mL of 0.5 M KI
3. 50 mL of 1 M AgNO3 + 50 mL of 2 M KI
4. 50 mL of 2 M AgNO3 + 50 mL of 1.5 M KI
In which of the sols, the colloidal particles are with a negative charge?
1. TiO2
2. Hemoglobin
3. Starch
4. Hydrated Al2O3
The right option for the statement "Tyndall effect is exhibited by", is:
1. Starch solution
2. Urea solution
3. NaCl solution
4. Glucose solution
| Statement I: | In the coagulation of a negative sol, the flocculating power of the three given ions is in the order Al3+ > Ba2+ > Na+ |
| Statement II: | In the coagulation of a positive sol, the flocculating power of the three given salts is in the order NaCl > Na2SO4 > Na3PO4 |
| 1. | I is incorrect but II is correct. |
| 2. | Both I and II are correct. |
| 3. | Both I and II are incorrect. |
| 4. | I is correct but II is incorrect. |
| 1. | foam | 2. | sol |
| 3. | gel | 4. | solid sol |
Preparing Colloidal Solution for NEET
Colloidal Solution is a specific sub-topic that frequently appears in the NEET examination. Understanding the underlying principles and practicing targeted questions is key to mastering this concept.
The questions compiled above are previous year questions (PYQs) directly related to Colloidal Solution. Practicing these specific questions helps you understand the difficulty level and the examiner's approach to this topic.
Topic Frequently Asked Questions
Is Colloidal Solution a high-weightage topic?
You can refer to the priority and consistency badges at the top of this page. High priority topics should be thoroughly revised multiple times before the exam.
Should I memorize the solutions?
No, it is highly recommended to understand the core concept and methodology behind each solution rather than memorizing them, as exact questions are rarely repeated, but the concepts definitely are.