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JEE-Main - Grade 12 - Chemistry - Surface Chemistry - Introduction and Snapshot of Surface Chemistry - Study ref# 863

Introduction: Surface chemistry deals with phenomena that occur at the surfaces or interfaces. The interface or surface is represented by separating the bulk phases by a hyphen or a slash. For example, the interface between a solid and... read more

JEE-Main - Grade 12 - Chemistry - Surface Chemistry - Introduction and Snapshot of Surface Chemistry - Study ref# 864

Following sections must be covered to understand the Surface Chemistry: 1. Adsorption 2. Catalysis 3. Colloids 4. Classification of Colloids 5. Emulsions 6. Colloids Around Us... read more

JEE-Main - Grade 12 - Chemistry - Surface Chemistry - Target Setup for Surface Chemistry - Study ref# 865

Student requires to achieve the following milestones to get better grip over Surface Chemistry. The milestones / targets are as follows: Starting Point: Days 0Test TypeAppear on TestTarget TestsScorePractice Test000%Chapter Test0... read more

JEE-Main - Grade 11 - Chemistry - Some Basic Concepts of Chemistry - Study ref# 1155

20% surface sites have absorbed .On heating N2 gas evolved from sites and were collected at 0.001 atm and 298k in a container of volume is 2.46 cm3. Density of surface sites is 6.023×1014/cm2 and surface area is 1000cm2; find out the ... read more

JEE-Main - Grade 11 - Chemistry - Organic Chemistry - Some Basic Principles and Techniques - Study ref# 5361

What is the difference between distillation , distillation under reduced pressure and steam distillation  ? Hints- Discuss on the basis of boiling points of different substances. Answer: Distillation involves the process of heating a liquid ... read more

JEE-Main - Grade 12 - Chemistry - Surface Chemistry - Study ref# 9780

Which of the following curves is in according with Freund-lich adsorption isotherm?

(a)           ... read more

JEE-Main - Grade 12 - Chemistry - Surface Chemistry - Study ref# 9781

Freund-lich adsorption isotherm is given by the expression  which of the following conclusions can be drawn from this expression?

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JEE-Main - Grade 12 - Chemistry - Surface Chemistry - Study ref# 9787

What causes Brownian motion in colloidal dispersion? Answer: Brownian movement may be defined as continuous zig -zag movement of colloidal particles in a colloidal sol. A state of continuous zig- zag motion of colloidal particles appears to ... read more

JEE-Main - Grade 12 - Chemistry - Chemistry in Everyday Life - Study ref# 10085

What is a soft soap? Answer: Chemical substances which concentrates at the surface of the solution or interfaces, from surface films, reduces surface tension of the solution and help in removing dirt and dust by emulsifying grease are called... read more

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