CBSE NCERT Solutions For Class 12 Chemistry Chapter 12: This Class 12 Chemistry Chapter 12 teaches you that in aldehydes, the carbonyl group is bonded to carbon and hydrogen, while in the ketones, it is bonded to two carbon atoms. The carbonyl compounds in which the carbonyl group is bonded to oxygen are known as carboxylic acids. Their derivatives, where carbon is attached to nitrogen and halogens, are called amides and acyl halides. These aldehydes, ketones, and carboxylic acids hold a lot of importance while preparing for the Boards or entrance examinations. Therefore, we bring you these NCERT Solutions For Class 12 Chemistry Chapter 12 in this article for a better board exam preparation.
This NCERT Class 12 Chemistry Chapter 12 teaches that the IUPAC names of open chain aliphatic aldehydes and ketones are derived from the names of the corresponding alkanes. These alkanes’ names can be replaced from the ones ending -e with -al and -one, respectively. In aldehydes, the longest carbon chain is numbered starting from the carbon of the aldehyde group. However, in ketones, the numbering begins from the end nearer to the carbonyl group. Solving the NCERT Class 12 Chemistry Chapter 12 questions will further clear any query on this topic that you might face. We get you completely solved NCERT Solutions for Class 12 Chemistry Chapter 12 written by the top academic experts at Embibe.
NCERT Solutions For Class 12 Chemistry Chapter 12: Aldehydes, Ketones, And Carboxylic Acids
The topics and sub-topics of NCERT Class 12 Chemistry Chapter 12 Aldehydes, Ketones, And Carboxylic Acids will help you prepare for CBSE Boards or the top entrance exams. These topics and sub-topics will aid you in preparing well for the CBSE Exam. This will also help you in understanding the topics under NCERT Class 12 Chemistry Chapter 12:
|12.1||Nomenclature and Structure of Carbonyl Group|
|12.2||Preparation of Aldehydes and Ketones|
|12.5||Uses of Aldehydes and Ketones|
|12.6||Nomenclature and Structure of Carboxyl Group|
|12.7||Methods of Preparation of Carboxylic Acids|
|12.10||Uses of Carboxylic Acids|
Now let us move towards the brief description of Class 12 Chemistry Chapter 12.
Chapter Description Of Class 12 Chemistry Chapter 12 – Aldehydes, Ketones, And Carboxylic Acids
Class 12 Chemistry Chapter 12 Aldehydes, Ketones, And Carboxylic Acids focuses on strong oxidizing agents oxidizing toluene and its derivatives to benzoic acids. This chapter will correlate the physical properties and chemical reactions of aldehydes, ketones, and carboxylic acids, along with their structures.
Students will be able to understand the mechanism of different reactions of aldehydes and ketones. The conceptual understanding of various factors affecting the acidity of carboxylic acids and their reactions can help you in higher education. The NCERT Solutions for Class 12 Chemistry Chapter 12 will help you get stuck in any question. These solutions will be useful at the time of revising your concepts.
NCERT Solutions For Class 12 Physics Chapter 12: Aldehydes, Ketones, And Carboxylic Acids
Methanal is a gas at room temperature. Ethanol is a volatile liquid. Other aldehydes and ketones are liquid or solid at room temperature. The boiling points of aldehydes and ketones are higher than hydrocarbons and ethers of comparable molecular masses. It is due to the weak molecular association in aldehydes and ketones arising out of the dipole-dipole interactions. Also, their boiling points are lower than those of alcohols of similar molecular masses due to the absence of intermolecular hydrogen bonding.
CBSE NCERT Class 12 Chemistry Chapter 12 Amines further teaches that aldehydes are generally more reactive than ketones in nucleophilic addition reactions due to steric and electronic reasons. Sterically, the presence of two relatively large substituents in ketones hinders the approach of the nucleophile to carbonyl carbon than in aldehydes having only one such substituent. To understand all these components, you must go through your NCERT books, and these solutions will assist you in the overall preparation.
Important NCERT Questions For Class 12 Chemistry Chapter 12
Some of the important questions for CBSE Class 12 Chemistry Chapter 12 are as under:
|Short Anwer Type Important Questions|
1. Benzaldehyde can be obtained from benzal chloride. Write reactions for obtaining benzal chloride and then benzaldehyde from it.
2. Oxidation of ketones involves carbon-carbon bond cleavage. Name the products formed oxidation of 2, 5-dimethylhexane-3-one.
3. Carboxylic acids contain carbonyl groups but do not show the nucleophilic addition reaction like aldehydes or ketones. Why?
4. Can Gatterman-Koch reaction be considered similar to Friedel Craft’s acylation? Discuss.
5. Arrange the following reactions in decreasing order of their acidic strength: CH3CH20H, CH3COOH, ClCH2COOH, FCH2COOH, C6H5CH2COOH
|Long Anwer Type Important Questions|
1. An alkene ‘A’ (Mol. formula C5H10) on ozonolysis of two compounds, ‘B’ and ‘C.’ Compound ‘B’ gives positive Fehling’s test and also forms iodoform on treatment with I2 and NaOH. Compound ‘C’ does not give Fehling’s test but forms an iodoform. Identify the compounds A, B, and C. Write the reaction for ozonolysis and formation of iodoform from B and C.
2. An aromatic compound ‘A’ (Molecular formula C8H80) gives a positive 2, 4-DNP test. It gives a yellow precipitate of compound ‘B’ on treatment with iodine and sodium hydroxide solution. Compound ‘A’ does not give Tollen’s or Fehling’s test. On drastic oxidation with potassium permanganate, it forms a carboxylic acid ‘C’ (Molecular formula C7H6O2), which is also formed along with the yellow compound in the above reaction. Identify A, B, and C and wore all the reactions involved.
3. Write down functional Isomers of a carbonyl compound with molecular formula C3H6O. Which Isomer will react faster with HCN and why? Explain the mechanism of the reaction also. Will the reaction lead to the completion with the conversion of the whole reactant into a product at reaction conditions? If a strong acid is added to the reaction mixture, what will affect the concentration of the product and why?
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This article on CBSE NCERT Solutions for Class 12 Chemistry Chapter 12 Aldehydes, Ketones, And Carboxylic Acids will be helpful to you in clearing your doubts regarding this topic. First, however, it would help solve the NCERT Questions for Class 12 Chemistry Chapter 12 to have the best preparation ahead. Also, solve previous year’s papers and take a sufficient amount of mock tests.
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|NCERT Solutions for Class 12 Chemistry Chapter 11||Class 12 NCERT Solutions For All Chapters Of Chemistry||NCERT Solutions for Class 12 Chemistry Chapter 13|
FAQs Related to NCERT Solutions for Class 12 Chemistry Chapter 12 Aldehydes Ketones And Carboxylic Acids
Q. Where can I solve Aldehydes, Ketones, and Carboxylic Acids practice questions?
A. You can solve CBSE Class 12 Chemistry Chapter 12 questions for free on Embibe
Q. From where can I download CBSE NCERT Class 12 Chemistry Chapter 12 solutions?
A. You can download the CBSE NCERT Class 12 Chemistry Chapter 13 solutions for Aldehydes, Ketones, and Carboxylic Acids from Embibe.
Q. What is meant by aldehyde, Class 12?
A. Aldehyde: any class of organic compounds in which a carbon atom shares a double bond with an oxygen atom, a single bond with a hydrogen atom, and a single bond with another atom or group of atoms (designated R in general chemical formulas and structure diagrams).
Q. How many exercises are there in NCERT Solutions for Class 12 Chemistry Chapter 12 PDF?
A. There are a total of 10 exercises in NCERT Solutions for Class 12 Chemistry Chapter 12 Aldehydes, Ketones, and Carboxylic Acids.
Q. What is a simple ketone in Class 12?
A. Ketones contain a carbonyl group (a carbon-oxygen double bond). The simplest ketone is acetone (R = R’ = methyl), with the formula CH3C(O)CH3
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