NCERT Solutions class 12 Chemistry Amines part 1

NCERT Solutions class 12 Chemistry Amines part 1 Class 12 Chemistry book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE board exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 12 Chemistry chapter wise NCERT solution for Chemistry part 1 and Chemistry part 2 for all the chapters can be downloaded from our website and myCBSEguide mobile app for free.

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NCERT Class 12 Chemistry Chapter-wise Solutions

•  1 – The Solid State
• 2 – Solutions
• 3 – Electrochemistry
• 4 – Chemical Kinetics
• 5 – Surface Chemistry
• 6 – General Principles and Processes of Isolation of Elements
• 7 – The p-Block Elements
• 8 – The d-and f-Blocks Elements
• 9 – Coordination Compounds
• 10 – Haloalkanes and Haloarenes
• 11 – Alcohols, Phenols and Ethers
• 12 – Aldehydes, Ketones and Carboxylic Acids
• 13 – Amines
• 14 – Biomolecules
• 15 – Polymers
• 16 – Chemistry in Everyday Life

CHAPTER THIRTEEN AMINES

• 13.1 Structure of Amines
• 13.2 Classification
• 13.3 Nomenclature
• 13.4 Prepartion of Amines
• 13.5 Physical Properties
• 13.6 Chemical Reactions
• 13.7 Method of Prepartion of Diazonium Salts
• 13.8 Physical Properties
• 13.9 Chemical Reactions
• 13.10 Importance of Diazonium Salts in Synhesis of Aromatic Compounds

NCERT Solutions class 12 Chemistry Amines part 1

Part-1

1. Write IUPAC names of the following compounds and classify them into primary, secondary and tertiary amines.

(i)

(ii)

(iii)

(iv)

(v)

(vi)

(vii)

2. Give one chemical test to distinguish between the following pairs of compounds.

(i) Methylamine and dimethylamine

(ii) Secondary and tertiary amines

(iii) Ethylamine and aniline

(iv) Aniline and benzylamine

(v) Aniline and N-methylaniline.

3. Account for the following:

(i) pKb of aniline is more than that of methylamine.

(ii) Ethylamine is soluble in water whereas aniline is not.

(iii) Methylamine in water reacts with ferric chloride to precipitate hydrated ferric oxide.

(iv) Although amino group is o, p- directing in aromatic electrophilic substitution reactions, aniline on nitration gives a substantial amount of m-nitroaniline.

(v) Aniline does not undergo Friedel-Crafts reaction.

(vi) Diazonium salts of aromatic amines are more stable than those of aliphatic amines.

(vii) Gabriel phthalimide synthesis is preferred for synthesising primary amines.

4. Arrange the following:

(i) In decreasing order of the pKbvalues:

and

(ii) In increasing order of basic strength:

, , and

(iii) In increasing order of basic strength:

(a) Aniline, p-nitroaniline and p-toluidine

(b) , , .

(iv) In decreasing order of basic strength in gas phase:

, (C2H5)2NH, and

(v) In increasing order of boiling point:

, ,

(vi) In increasing order of solubility in water:

, , .

5. How will you convert:

(i) Ethanoic acid into methanamine

(ii) Hexanenitrile into 1-aminopentane

(iii) Methanol to ethanoic acid

(iv) Ethanamine into methanamine

(v) Ethanoic acid into propanoic acid

(vi) Methanamine into ethanamine

(vii) Nitromethane into dimethylamine

(viii) Propanoic acid into ethanoic acid

6. Describe a method for the identification of primary, secondary and tertiary amines. Also write chemical equations of the reactions involved.

7. Write short notes on the following:

(i) Carbylamine reaction

(ii) Diazotisation

(iii) Hofmann’s bromamide reaction

(iv) Coupling reaction

(v) Ammonolysis

(vi) Acetylation

(vii) Gabriel phthalimide synthesis.

NCERT Solutions class 12 Chemistry

NCERT Solutions Class 12 Chemistry PDF (Download) Free from myCBSEguide app and myCBSEguide website. Ncert solution class 12 Chemistry includes text book solutions from both part 1 and part 2. NCERT Solutions for CBSE Class 12 Chemistry have total 16 chapters. 12 Chemistry NCERT Solutions in PDF for free Download on our website. Ncert Chemistry class 12 solutions PDF and Chemistry ncert class 12 PDF solutions with latest modifications and as per the latest CBSE syllabus are only available in myCBSEguide NCERT Solutions class 12 Chemistry Amines part 1

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