Chapter 29 of 46
Revision Notes
Solutions — Revision Notes
JEE Mains · Chemistry
Free Solutions revision notes for JEE Mains Chemistry 2026 — key concepts, formulas, and definitions for quick revision.
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Key concepts, formulas, and definitions from Solutions for JEE Mains Chemistry preparation.
Key Topics to Revise
1
Basic Concepts of Solutions
- Solution = Homogeneous mixture of solute + solvent
- Solvent is present in larger quantity, solute in smaller quantity
- Binary solutions have two components, ternary have three components
2
Concentration Terms and Calculations
- Molarity (M) = moles of solute per liter of solution
- Molality (m) = moles of solute per kg of solvent
- Mole fraction (X) = moles of component / total moles
3
Henry's Law and Gas Solubility
- Henry's Law: Solubility of gas ∝ Pressure of gas
- At constant temperature, p = K_H × X (mole fraction form)
- K_H is Henry's constant, depends on gas and solvent nature
4
Raoult's Law and Vapor Pressure
- Raoult's Law: P_solution = X_solvent × P°_solvent
- Vapor pressure of solution < vapor pressure of pure solvent
- For volatile components: P_A = X_A × P°_A, P_B = X_B × P°_B
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Key Concepts
A solution is a homogeneous mixtureStates that the partial vapor pressureThe solubility of a gasIdeal solutions obey Raoult's law atSolutions that boil at constant temperature
Frequently Asked Questions
What topics are covered in Solutions for JEE Mains?
Solutions is an important chapter in JEE Mains Chemistry. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: Basic Concepts of Solutions, Concentration Terms and Calculations, Henry's Law and Gas Solubility, Raoult's Law and Vapor Pressure.
How important is Solutions for JEE Mains?
Solutions is a frequently tested chapter in JEE Mains Chemistry. Questions from this chapter appear regularly in previous year papers. There are 89 practice questions available for this chapter.
How to prepare Solutions for JEE Mains?
Start by understanding the core concepts, then solve practice questions. Focus on formulas and their applications. Use revision notes for quick review before the exam.
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