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Solutions — Revision Notes

Telangana Open School (TOSS) · Class 12 · Chemistry

Solutions revision notes for Telangana Open School (TOSS) Class 12 Chemistry: 4 topics in quick points. Includes Components of a Solution, Concentration.

48 questions35 flashcards8 formulas & key relations5 concepts

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Key Topics to Revise

1

Components of a Solution

  • A solution is a homogeneous mixture of two or more substances.
  • Solute is the component that dissolves in the solvent.
  • Solvent is the component in which the solute dissolves and has the same physical state as the solution.
2

Concentration of Solutions

  • Different ways to express concentration: molarity, molality, normality, mole fraction, and mass percentage.
  • Molarity depends on volume and changes with temperature.
  • Molality is based on mass and does not change with temperature.
3

Types of Solutions and Henry's Law

  • Nine possible combinations of solute and solvent states exist, but common ones are solid in liquid, gas in liquid, and liquid in liquid.
  • Gases dissolve in liquids; solubility increases with pressure and decreases with temperature.
  • Henry’s Law: the solubility of a gas is directly proportional to its partial pressure.
4

Vapour Pressure and Raoult's Law

  • Vapour pressure is the pressure exerted by vapours in equilibrium with the liquid.
  • Raoult’s Law: partial vapour pressure of each component is proportional to its mole fraction.
  • For non-volatile solutes, vapour pressure of solution is less than pure solvent.

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Full Notes

Key Concepts

A solution consists of a soluteConcentration can be expressed in severalHenry’s Law states that the solubilityIdeal solutions follow Raoult’s Law exactlyThese are properties that depend only

Frequently Asked Questions

What are the important topics in Solutions for Telangana Open School (TOSS) Class 12 Chemistry?
Key topics in Solutions include Components of a Solution, Concentration of Solutions, Types of Solutions and Henry's Law, Vapour Pressure and Raoult's Law. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How should I revise Solutions for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 48 practice questions on Solutions. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All Telangana Open School (TOSS) Class 12 Chemistry Revision Notes

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