Class 12 Chemistry — Chapter 1: Solutions
Chapter 1: Solutions is a chapter in Class 12 Chemistry (Part 1), part of the CBSE NCERT curriculum followed by over 25 million students across India. This chapter covers 6 topics including Types of Solutions, Concentration: Mass and Volume Units, Concentration: Mole Fraction (x). BrainWeave provides free AI-powered explanations — by voice or text, in Hindi or English — with no signup required.
What you'll learn
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▸Types of SolutionsCore concepthomogeneous mixturesolutesolventbinary solution
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▸Concentration: Mass and Volume UnitsCore conceptmass percentagevolume percentageparts per millionconcentration
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▸Concentration: Mole Fraction (x)Core conceptmole fractionmolescomponentbinary mixture
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▸Concentration: Molarity (M)Core conceptmolaritymoles of solutevolume of solutiontemperature dependent
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▸Concentration: Molality (m)Core conceptmolalitymoles of solutemass of solventtemperature independent
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▸Solubility Fundamentalssolubilitydissolvedsaturated solutiontemperature effect
Chapter Summary
Understanding the definition of a solution as a homogeneous mixture and classifying binary solutions based on the physical state of the solute and solvent (e.g., solid in liquid, gas in gas).
Calculating solution concentration using mass percentage (w/w), volume percentage (v/v), mass by volume percentage (w/V), and parts per million (ppm).
Defining and calculating the mole fraction of each component in a solution from the number of moles. Understanding that the sum of mole fractions for all components is equal to one.
Defining molarity as moles of solute per liter of solution, and calculating it from given mass and volume. Understanding its dependence on temperature.
Defining molality as moles of solute per kilogram of solvent, and calculating it from given masses. Understanding why it is independent of temperature.
Defining solubility as the maximum amount of a solute that can dissolve in a given amount of solvent and identifying the factors that affect it, such as nature of solute/solvent, temperature, and pressure.
Practice Questions from this Chapter
Tap "Get Solution" on any question to ask our AI tutor.
- Explain how solutions affect blood. Get Solution →
- Compare dilute and concentrated solutions simply. Get Solution →
- Describe types of solutions we use daily. Get Solution →
- What is a homogeneous mixture of two or more components called? Get Solution →
- In a solution, what is the term for the component that is present in the largest quantity? Get Solution →
- A solution that consists of exactly two components is known as what? Get Solution →
- According to Table 1.1, an amalgam of mercury with sodium is an example of what type of solution? Get Solution →
- Which unit of concentration is most convenient for expressing the amount of a solute present in trace quantities? Get Solution →
Did you know?
- 💡 The human body is mostly a solution, with water dissolving countless substances.
- 💡 Sharks can smell one drop of blood diluted in a million drops of water.
- 💡 Fog and clouds are tiny liquid water droplets suspended in air, a type of solution.
- 💡 Gold jewelry is usually a solid solution, mixing pure gold with other metals for strength.
- 💡 Your tears are a saline solution, containing salt and other chemicals.
Frequently Asked Questions
How many topics are covered in this chapter?
This chapter covers 6 key topics: Types of Solutions, Concentration: Mass and Volume Units, Concentration: Mole Fraction (x), Concentration: Molarity (M), Concentration: Molality (m), and more. The BrainWeave AI tutor explains each one with examples.
Is Chapter 1: Solutions important for board exams?
Yes — Class 12 is a CBSE board exam year, and every NCERT chapter is part of the syllabus. Use BrainWeave's AI tutor to master this chapter, then practice with the auto-generated quizzes and mind maps.
Can I get NCERT solutions for this chapter in Hindi?
Yes. BrainWeave's AI tutor supports Hindi, English, and Hinglish for both voice and text chat. Just ask your question in your preferred language.
Is BrainWeave free for Class 12 - Science?
Yes. BrainWeave's free Spark plan gives generous daily messages — enough for regular homework. Premium features unlock when you bring your own free Google Gemini API key.
Can I use voice chat for this chapter?
Absolutely. Tap the mic, ask any question about Chapter 1: Solutions, and the AI tutor will explain it back in voice and text.
How is BrainWeave better than static NCERT solutions sites?
Static solution sites give the same answer to everyone. BrainWeave adapts to your question — ask "explain like I'm 12" or "give a real-world example" and get a personalized response. Voice mode and Hindi support work seamlessly.
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