Q48.Flocculation value of BaCl2 is much less than that of KCl for sol A and flocculation value of Na2SO4 is much less than that of NaBr for sol B. The correct statement among the following is : (1) Both the sols A and B are negatively charged. (2) Sol A is positively charged and Sol B is negatively charged. (3) Both the sols A and B are positively charged. (4) Sol A is negatively charged and sol B is positively charged.
What This Question Tests
This question tests the understanding and application of the Hardy-Schulze rule to determine the charge of colloidal sols based on the relative flocculation values of different electrolytes.
Concepts Tested
📚 NCERT Sections This Tests
2.8 — The Conductivity Of 0.20 M Solution Of Kcl At 298 K Is 0.0248 S Cm–1. Calculate
Chemistry Class 11 · Chapter 2
2.8 The conductivity of 0.20 M solution of KCl at 298 K is 0.0248 S cm–1. Calculate its molar conductivity.
5.13 — Aqueous Copper Sulphate Solution (Blue In Colour) Gives:
Chemistry Class 11 · Chapter 5
5.13 Aqueous copper sulphate solution (blue in colour) gives: (i) a green precipitate with aqueous potassium fluoride and (ii) a bright green solution with aqueous potassium chloride. Explain these experimental results.
1.23 — Suggest The Most Important Type Of Intermolecular Attractive Interaction In
Chemistry Class 11 · Chapter 1
1.23 Suggest the most important type of intermolecular attractive interaction in the following pairs. (i) n-hexane and n-octane (ii) I2 and CCl4 (iii) NaClO4 and water (iv) methanol and acetone (v) acetonitrile (CH3CN) and acetone (C3H6O). 1.24 Based on solute-solvent interactions, arrange the following in order of increasing solubility in n-octane and explain. Cyclohexane, KCl, CH3OH, CH3CN.
📋 Question Details
- Chapter
- Surface Chemistry
- Topic
- Coagulation of colloids
- Year
- 2013
- Shift
- 22 Apr Online
- Q Number
- Q48
- Type
- Conceptual
- NCERT Ref
- Class 12 Chemistry Ch 5: Surface Chemistry
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