How to Excel in JEE Main 2025-26 with Chapterwise Mock Tests
Solutions is a high-weightage chapter in JEE Chemistry, foundational for mastering concepts like concentration terms, colligative properties, Raoult’s law, and solubility equilibria. Practice is crucial to reinforce your understanding of solution chemistry and their applications in both physical and inorganic chemistry. Take this mock test to hone your skills and boost your confidence for JEE Main and Advanced!
Mock Test Instructions for the Solutions:
- 20 questions from Solutions
- Time limit: 20 minutes
- Single correct answer per question
- Correct answers appear in bold green after submission
How Can Mock Tests Help You Master Solutions in JEE Chemistry?
- Achieve clarity on calculation-based questions involving molality, molarity, and mole fraction.
- Regular mock practice helps identify misconceptions in concepts like colligative properties and van’t Hoff factor.
- Review mock test feedback to pinpoint weak areas, such as applying Raoult’s and Henry’s laws in numericals.
- Enhance speed and accuracy in calculating concentration terms using mock-based time trials.
- Mock tests expose common traps in solution chemistry, vital for JEE mistake-proofing.
Boost Your JEE Chemistry Score with Expert-Designed Solutions Chapter Mock Tests
- Simulate real JEE exam environment on solution chemistry with time-bound mock tests.
- Sharpen problem-solving tactics in colligative property and vapor pressure numericals with targeted mock practice.
- Test understanding of abnormal molecular mass, association, and dissociation scenarios seen in JEE questions.
- Use structured feedback from mock tests to revise key solution chemistry formulas and concepts.
- Practicing Solutions MCQs through mocks builds lasting memory and conceptual confidence.
Subject-Wise Excellence: JEE Main Mock Test Links
| S.No. | Subject-Specific JEE Main Online Mock Tests |
|---|---|
| 1 | Online FREE Mock Test for JEE Main Chemistry |
| 2 | Online FREE Mock Test for JEE Main Maths |
| 3 | Online FREE Mock Test for JEE Main Physics |
Important Study Materials Links for JEE Exams
FAQs on JEE Main 2025-26 Mock Test Solutions for [Chapter Name]
1. What are solutions in chemistry?
Solutions are homogeneous mixtures of two or more substances where the composition is uniform throughout. The substance present in the largest amount is called the solvent, and the substance(s) dissolved in it are called the solute. Solutions can be solid, liquid, or gas, and examples include sugar dissolved in water and air (a mixture of gases).
2. What is the difference between solute and solvent?
Solute is the component of a solution that is present in a lesser amount and gets dissolved, while the solvent is present in a larger amount and dissolves the solute. For example, in a sugar solution, sugar is the solute and water is the solvent.
3. What are the types of solutions based on physical states?
Based on the physical state of components, solutions are classified as:
• Solid solutions (e.g., alloys)
• Liquid solutions (e.g., salt water)
• Gaseous solutions (e.g., air)
Each type depends on whether the solute and solvent are solid, liquid, or gas.
4. What factors affect the solubility of a solute?
Solubility is affected by:
- Nature of solute and solvent (like dissolves like)
- Temperature (most solids become more soluble at higher temperatures, but gases become less soluble)
- Pressure (most significant for gaseous solutes; increased pressure increases solubility in liquids)
5. How is concentration of a solution expressed?
The concentration of a solution describes how much solute is dissolved in a given amount of solvent or solution. Common ways to express concentration include:
• Molarity (M): moles of solute per litre of solution
• Molality (m): moles of solute per kg of solvent
• Mass percent: mass of solute per 100g of solution
• Volume percent and mole fraction
6. What is meant by mole fraction?
Mole fraction is the ratio of the number of moles of a component to the total number of moles of all components in a solution. It is a dimensionless quantity and is useful in calculations involving vapor pressure and colligative properties.
7. What are colligative properties?
Colligative properties are properties of solutions that depend on the number of solute particles and not the nature or type of solute. Examples include relative lowering of vapor pressure, elevation of boiling point, depression of freezing point, and osmotic pressure.
8. What is Henry’s law?
Henry’s law states that at a constant temperature, the solubility of a gas in a liquid is directly proportional to the pressure of the gas above the liquid. Mathematically, p = kH x, where p is the partial pressure, x is mole fraction, and kH is Henry’s constant.
9. How does temperature affect the solubility of solids and gases in liquids?
Solubility of solids in liquids generally increases with temperature, while the solubility of gases decreases as temperature increases. This explains why cold water can hold more dissolved oxygen than warm water.
10. What is an ideal solution?
An ideal solution obeys Raoult’s law over the entire range of concentrations and shows no enthalpy or volume change upon mixing. In such solutions, the intermolecular interactions between solute and solvent are similar to those present in pure components. E.g., mixtures of benzene and toluene.
11. What is Raoult's law?
Raoult’s law states that for a solution of volatile liquids, the partial vapor pressure of each component is directly proportional to its mole fraction in the solution. It helps predict the vapor pressure of liquid mixtures and applies perfectly only to ideal solutions.
12. Why are colligative properties useful in determining molar mass of solutes?
Because colligative properties depend only on the number of solute particles, they can be used to calculate the molar mass of unknown, non-volatile solutes by measuring changes in properties such as boiling point or freezing point upon addition of the solute to a known quantity of solvent.
