NCERT Solutions for Class 12 Chemistry Chapter 9 Amines: Download PDF For FREE

NCERT Solutions Class 12 Chemistry Chapter 9 Amines: This article has accurate and detailed solutions for the intext as well as exercise questions for NCERT Class 12 Chemistry Chapter 9 Amines.

Jan 14, 2025, 10:37 IST

Get here NCERT Solutions for Class 12 Chemistry Chapter 9 Amines.

NCERT Solutions for Class 12 Amines Chapter 9: Intext as well as exercise questions are essential for students. These questions might come in the 2025 Board examination. So it is important that students have access to the accurate and precise solutions to these questions. For subjects like Chemistry, students should be aware of the right approach to tackle the questions. To help students, we have provided the NCERT Solutions for Class 12 Chemistry Chapter 9 Amines here.

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Download the NCERT Solutions for Class 12 Chemistry Chapter 9 Amines from the direct link given in this article. The solutions have been given in PDF format so students can save and view the PDFs on phones, tablets, computers and laptops.

NCERT Class 12 Chemistry Chapter 9 Amines Solutions

Given below are solutions for intext questions from NCERT Class 12 Chapter 9 Amines. Download the pdf to get the solutions for all the exercise questions.

Intext Questions and Solutions Page no. 262

9.1 Classify the following amines as primary, secondary or tertiary:

Sol. (i) 1°

(ii) 3°

(iii) 1°

(iv) 2°

9.2 (i) Write structures of different isomeric amines corresponding to the molecular formula, C₄H₁₁N.

(ii) Write IUPAC names of all the isomers.

(iii) What type of isomerism is exhibited by different pairs of amines?

Sol.

(iii) Chain isomers: (i) and (ii) ; (iii) and (iv) ; (i) and (iv)

Position isomers: (ii) and (iii) ; (ii) and (iv)

Metamers: (v) and (vi) ; (vii) and (viii)

Functional isomers: All the three types of amines are the functional isomers of each other.

Intext Questions and Solutions Page no. 265

9.3 How will you convert (i) Benzene into aniline (ii) Benzene into N, N-dimethylaniline (iii) C1–(CH₂) ₄ –C1 into hexan-1,6-diamine?

Sol.

Intext Questions and Solutions Page no. 274

9.4 Arrange the following in increasing order of their basic strength:

(i) C₂H₅NH₂, C₆H₅NH₂, NH₃ , C₆H₅CH₂NH₂ and (C₂H₅ )₂NH

(ii) C₂H₅NH₂,(C₂H₅ ) ₂NH, (C₂H₅ ) ₃N, C₆H₅NH₂

(iii) CH₃NH₂ ,(CH₃ ) ₂NH,(CH₃ ) ₃N, C₆H₅NH₂,C₆H₅CH₂NH₂.

Sol.

9.5 Complete the following acid-base reactions and name the products: (i) CH₃CH₂CH₂NH₂+ HCl → (ii) (C₂H₅ ) ₃N + HCl →

Sol.

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9.6 Write reactions of the final alkylation product of aniline with excess of methyl iodide in the presence of sodium carbonate solution.

Sol.

9.7 Write chemical reaction of aniline with benzoyl chloride and write the name of the product obtained.

Sol.

9.8 Write structures of different isomers corresponding to the molecular formula, C₃H₉N. Write IUPAC names of the isomers which will liberate nitrogen gas on treatment with nitrous acid.

Sol.