Understanding concepts during class hours may be challenging especially. Students should consult the common reference materials online to overcome this problem to clear their doubts. The practice of flimsy concepts will boost their confidence in the exam. Students should read a chapter from the NCERT handbook and reply to the exercise questions to gain a strong conceptual understanding. Students’ problem-solving and perceptive thinking skills would improve if they answered questions using the NCERT Solutions.
NCERT Solutions Class 12 is an important subject because it includes several more chemical reactions and troubles that carry more weight in term-based exams. Students can only get good grades in this subject if they study the paragraphs regularly. Sometimes numerical are visible in the paragraphs, so there is nothing beneath the important equations and understanding how to solve them is an important step. The NCERT Solutions include explanations for each reaction, making it easier for students to prepare for term-based exams. Students can also easily recall and revise the chapters while attempting to answer the complex questions on the exam.
Also See: CBSE Class 12 Term 2 Chemistry Paper Analysis
Class 12 Chemistry Chapters
- Chapter 1: The Solid State
- Chapter 2: Solutions
- Chapter 3: Electrochemistry
- Chapter 4: Chemical Kinetics
- Chapter 5: Surface Chemistry
- Chapter 6: General Principles and Processes of Isolation of Elements
- Chapter 7: The p-Block Elements
- Chapter 8: The d & f Block Elements
- Chapter 9: Coordination Compounds
- Chapter 10: Haloalkanes and Haloarenes
- Chapter 11: Alcohols, Phenols, and Ethers
- Chapter 12: Aldehydes, Ketones, and Carboxylic Acids
- Chapter 13: Amines
- Chapter 14: Biomolecules
- Chapter 15: Polymers
- Chapter 16: Chemistry in Everyday Life
Also See: CBSE Class 12 Chemistry Important Topics
Term 2 Syllabus with Weightage
Title | Marks |
Electrochemistry | 2 |
Chemical Kinetics | 6 |
Surface Chemistry | 5 |
d-and f-Block Elements | 9 |
Coordination Compounds | 13 |
Aldehydes, Ketones and Carboxylic Acids | 6 |
Chapter 3: Electrochemistry
Electrochemistry has been defined as a branch of chemistry concerned with the relationship and conversion of electrical impulses and energy produced inside a redox reaction. This chapter discusses batteries, galvanic cells, the Nernst equation, the thermal conductivity of electrolyte solution, electroless cells, electrolysis, batteries, fuel cells, and corrosion. Students who cannot solve numerical problems can use revision notes Solutions to answer them easily.
NCERT Solution
- Which one of the following compounds’ aqueous solution is effective for the electric current?
- Hydrochloric acid
- Acetic acid
Ammonia Fructose Solution: (b)
- Dilution leads to increased permeability comparable to a solid electrolyte.
- Ions’ ionic mobility has increased.
- 100% electrolyte energised with natural dilution results in an increase in both ion figures.
- Ionic mobility.
- An increase in ion counts
The answer is: (a)
- At infinite dilution, the equivalent conductances of Ba2+ and Cl– are 127 and 76 ohm-1 cm-1 eq-1, respectively. At infinite dilution, the equivalent conductivity of the solution of BaCl2 will be
- 139.5
- 203
- 279
- 101.5
Solution (a)
- 4. When one end of a steel plate is heated, the other end becomes hot
- Resistance of metal mobility of atoms in metal energised
- charged particles moving to the other end
- minor perturbation in atom energy
The answer is: (c)
- The mass of silver dislocated by an amount of voltage displacing 5600ml of Oxygen gas at STP is
- 54.9
- 108.0g
- 5.4g
- 10.8g
Solution: (d)
Chapter 4: Chemical Kinetics
- Describe a situation where a biomolecule response is a kinetically 1st reaction.
Solution: The order of a chemical process can be changed by using an excessive amount of the solvent or reactant, resulting in small change in concentration. Consider the following bimolecular reaction:
Product A + B
k[A][B] = rate
The rate becomes k'[A] when the concentration B is high.
In this case, k’=k[B].
The sequence of the reactions will be one.
- In a reaction, increasing the concentration of reaction A by threefold increases the reaction rate by twenty-seven times. What is the reaction’s sequence?
Solution: Consider the rate of a chemical reaction involving reactant A.
k[A] = rate
Rate = k[A] = 27
We get = 3 by dividing the equations.
As a result, the reaction takes three steps.
- For a specific reaction, many molecules have energy greater than the limit energy, but the reaction rate is very slow. Why?
Solution: According to collision theory, the two important circumstances for a reaction are:
. At the time of impact, energy is larger than chemical potential, and reactant molecules are properly oriented. When the reaction occurs, molecules that are not properly oriented reduce the rate of the reaction.
Chapter 5: Surface Chemistry
Surface chemistry is concerned with important aspects such as catalysis, adsorption, and colloids, which include gel and emulsion. Students can understand the inter-facial occurrence and its importance, adsorption and its classification, the mechanism of adsorption, and the factors determining adsorption after reading this chapter. Solving textbook questions and previous year’s question publications will help CBSE students prepare for their exams.
- A sorption is an abbreviated form.
absorbing
Adsorption
absorption as well as adsorption
Solution for desorption: Option (iii) is indeed the correct answer.
- Which of the following conditions is not favourable for physical adsorption?
Excessive pressure
Negative H
The higher the adsorbate’s critical temperature
Excessive heat
Solution: Alternative (iv) is the correct answer.
- Detergent behaves as ___________ at high concentrations in water.
Molecular colloid
Related colloid
Macromolecular colloid
Lyophilic colloid
Solution: Option (ii) is indeed the correct answer.
- Which one of the following exhibits the Tyndall effect?
An aqueous soap solution with a concentration below the critical micelle concentration.
An aqueous soap solution with a concentration above the critical micelle concentration.
A sodium chloride aqueous solution.
An aqueous sugar solution.
Solution: Alternative (ii) is the correct answer.
Chapter 8: The d- and f-Block Elements
The elements located here between s and p-blocks are transition elements. Alloy is a mixture series referred to as f-block elements. This chapter includes transition element general properties, transition metal ionic and atomic size variation, physical properties, ionisation enthalpies, magnetic properties, and oxidation states.
- In the +3 oxidation state, the electronic structure of a type of transfer X is
[Ar]3d5. What is its atomic number?
25th
26th
27
24
Solution: Option (ii) is indeed the correct answer.
- 2. Cu(II) does have an electronic configuration of 3d9, whereas Cu(I) has an electronic configuration of 3d10. Which
Which one is true?
Cu(II) is a more stable metal.
(ii) Cu(II) has lower stability.
Cu(I) and Copper(ii) are both equally stable.
(iv) The stability of Copper(i) as well as Cu(II) is determined by the nature of the copper salts.
Solution: Option I is the correct answer.
Chapter 9: Coordination Compounds
Coordination compounds are a difficult area of modern inorganic chemistry. In this chapter, students will learn about Werner’s Hypothesis of Coordination Chemistry, definitions of key terms, nomenclature, isomers are molecules, bonding, stability, importance, and implementations of coordination chemistry. They will also learn about meta carbonyl bonding, which is essential for the exams.
- [Pt(NH3)2Cl2] is the correct IUPAC name.
Diamminedichloroplatinum II (II)
Diamminedichloroplatinum (ii) (IV)
Diamminedichloroplatinum (iii) (0)
Dichlorodiammineplatinum (iv) (IV)
Solution: Option I is the correct answer
- A coagulant has 2 or more donor atoms that bind to a solitary acceptor atom. A metal ion Which of the following ones does not function as a chelating agent?
Thiosulphate
oxalate
Glycinato (iii)
Ethane-1,2-diamine (iv)
Solution: Option I is the correct answer.
- Is there any isomerism among [Cr(H2O)6]Cl3 (violet) as well as [Cr(H2O)5Cl]Cl2.H2O (greyish-green)?
Isomerism of linkage
Isomerism of solvates
Ionisation isomerism
Isomerism in coordination
Solution: Alternative (ii) is the correct answer.
Conclusion
Organic, inorganic, and physical chemistry are covered in Class 12 Chemistry. It establishes the foundation for applied science. Each chapter in this solution teaches young minds about chemical compounds, polymers, biomolecules, and their applications in everyday life, among other things. Students will have access to any chapter and topic people desire and will also be able to plan it on their own. The concepts are thoroughly explained with excellent examples that students could practice and boost their confidence with. The Revision notes solutions are designed to assist students in completing their syllabus before the board exam, allowing them to revise and add an extra surface to their preparation. Students should be able to start scoring well enough and gain confidence with the assistance of NCERT solutions.
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