NCERT Solutions for Class 12 Chemistry Chapter 2 – Solutions: In this article, we will provide you with NCERT Solutions for Class 12 Chemistry Chapter 2 Solutions. All the NCERT solutions provided on this page are solved by experts of Embibe in order to help students. These NCERT Solutions for Class 12 Chemistry Chapter 2 will not only boost their board exam marks but will also help to clear competitive UG entrance examinations.
Students can also download the NCERT Solutions for Class 12 Chemistry Solutions PDF to study in offline mode. Read on to find out everything about CBSE NCERT Solutions for Class 12 Chemistry Chapter 2 Solutions.
CBSE NCERT Solutions For Class 12 Chemistry Chapter 2 Solutions PDF Download
In the below section, we have given the list of CBSE NCERT Solutions For Class 12 Chemistry Chapter 2 of all exercises from 2.1 to 2.7, out of which most exercises have sub-units. The topics and sub-topics covered in CBSE Class 12 Chemistry Chapter 2 are tabulated below:
|Ex 2.1||Types of Solutions|
|Ex 2.2||Expressing Concentration of Solutions|
|EX 2.3.1||Solubility of a Solid in a Liquid|
|EX 2.3.2||Solubility of a Gas in a Liquid|
|EX 2.4||Vapour Pressure of Liquid Solutions|
|Ex 2.4.1||Vapour Pressure of Liquid-Liquid Solutions|
|Ex 2.4.2||Raoult’s Law as a special case of Henry’s Law|
|Ex 2.4.3||Vapour Pressure of Solutions of Solids in Liquids|
|Ex 2.5||Ideal and Nonideal Solutions|
|Ex 2.5.1||Ideal Solutions|
|Ex 2.5.2||Non-ideal Solutions|
|Ex 2.6||Colligative Properties and Determination of Molar Mass|
|Ex 2.6.1||Relative Lowering of Vapour Pressure|
|Ex 2.6.2||Elevation of Boiling Point|
|Ex 2.6.3||Depression of Freezing Point|
|Ex 2.6.4||Osmosis and Osmotic Pressure|
|Ex 2.7||Abnormal Molar Masses|
NCERT Solutions For Class 12 Chemistry Chapter 2 PDF
Students can download the NCERT Solutions for Class 12 Chemistry Chapter 2 in PDF to study in offline mode. With the help of this NCERT Solutions, candidates will not only be able to prepare for their board exams but also for competitive engineering and medical entrance exams.
CBSE Class 12 Chemistry Chapter 2: Solutions Important Questions
Some of the important questions from this chapter are as under:
Solutions Short Answer Type Questions
- Components of a binary mixture of two liquids A and B were being separated by distillation. After some time separation of components stopped and composition of vapour phase became same as that of liquid phase. Both the components started coming in the distillate. Explain why this happened.
- Explain why on addition of 1 mol of NaCl to 1 litre of water, the boiling point of water increases, while addition of 1 mol of methyl alcohol to one litre of water decreases its boiling point.
- Explain the solubility rule “like dissolves like” in terms of intermolecular forces that exist in solutions.
- Concentration terms such as mass percentage, ppm, mole fraction and molality are independent of temperature, however molarity is a function of temperature. Explain.
- hat is the significance of Henry’s Law constant K ?
- Why are aquatic species more comfortable in cold water in comparison to warm water?
- (a) Explain the following phenomena with the help of Henry’s law.
(i) Painful condition known as bends.
(ii) Feeling of weakness and discomfort in breathing at high altitude.
(b) Why soda water bottle kept at room temperature fizzes on opening?
- Why is the vapour pressure of an aqueous solution of glucose lower than that of water?
- How does sprinkling of salt help in clearing the snow covered roads in hilly areas? Explain the phenomenon involved in the process.
- What is “semi permeable membrane”?
- Give an example of a material used for making semipermeable membrane for carrying out reverse osmosis.
Solutions Long Answer Type Important Questions
- Define the following modes of expressing the concentration of a solution. Which of these modes are independent of temperature and why?
- (i) w/w (mass percentage)
- (ii) V/V (volume percentage)
- (iii) w/V (mass by volume percentage)
- (iv) ppm. (parts per million)
- (v) x (mole fraction)
- (vi) M (Molarity)
- (vii) m (Molality)
- Using Raoult’s law explain how the total vapour pressure over the solution is related to mole fraction of components in the following solutions.
- (i) CHCl3 (l) and CH2Cl2(l)
- (ii) NaCl(s) and H2O (l)
- Explain the terms ideal and non-ideal solutions in the light of forces of interactions operating between molecules in liquid solutions.
- Why is it not possible to obtain pure ethanol by fractional distillation? What general name is given to binary mixtures which show deviation from Raoult’s law and whose components cannot be separated by fractional distillation. How many types of such mixtures are there?
- When kept in water, raisin swells in size. Name and explain the phenomenon involved with the help of a diagram. Give three applications of the phenomenon.
- Discuss biological and industrial importance of osmosis.
- How can you remove the hard calcium carbonate layer of the egg without damaging its semiprermiable membrane? Can this egg be inserted into a bottle with a narrow neck without distorting its shape? Explain the process involved.
- Why is the mass determined by measuring a colligative property in case of some solutes abnormal? Discuss it with the help of Van’t Hoff factor.
CBSE Class 12 Chemistry Chapter 2: Solutions (Chapter Description)
Solutions are basically homogenous mixtures of two or more components. Solutions are classified as solid, liquid, and gaseous solutions. The composition of a solution can be revealed by its concentration. The concentration of a solution is expressed in terms of mole fraction, molarity, molality, and in percentages.
By the end of this chapter, you must be able to define the laws that bound solutions. For example, solutions that obey Raoult’s Law over the entire range of concentration are called ideal solutions. Such laws with derivations will be taught in this chapter which has great importance in the main exam.
FAQs On Chemistry Class 12 NCERT Solutions Chapter 2
Some of the frequently asked questions on NCERT Class 12 Chemistry Chapter 2 exercise solutions PDF and their answers are as under:
Q1: How to prepare the Chapter 2 Solutions of CBSE Class 12 Chemistry for the board exams?
A. Understand the concepts from NCERT books for Class 12 Chemistry. Go through the examples and then try to solve the exercise questions on your own. If you face any difficulty, refer to the NCERT solutions for Class 12 Chemistry Chapter 2 PDF provided here. Also, solve practice questions and take mock tests on Embibe.
Q2. From where can I download CBSE NCERT Class 12 Chemistry Chapter 2 solutions?
A. You can download the NCERT Solutions for Class 12 Chemistry Chapter 2 from Embibe.
Q3. Where can I solve Solutions practice questions?
A. You can solve CBSE Class 12 Chemistry Chapter 2 questions for free on Embibe.
Q4. Is CBSE NCERT Class 12 Chemistry Chapter 2 solutions are free of cost?
A. Yes, NCERT Solutions for Class 12 Chemistry Chapter 2 is free of cost to download from Embibe.
Q5. How many exercises are there in NCERT Solutions for Class 12 Chemistry Chapter 2 PDF Download?
A. There are a total of 7 exercises with sub-units in NCERT Solutions for Class 12 Chemistry Chapter 2 PDF.
We hope this NCERT Question and Solutions Class 12 Chemistry Chapter 2 help you.
Download NCERT Solutions for Class 12 Chemistry other chapters from below:
|NCERT Solutions for Class 12 Chemistry Chapter 1||NCERT Solutions for Class 12 Chemistry Chapter 3||NCERT Solutions for Class 12 Chemistry (All Chapters)|
Chemistry is an important subject as both engineering and medical aspirants need to prepare for the subject. If you are preparing for engineering or medical entrance exams, you can take the free medical and engineering entrance mock tests on Embibe.
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