NCERT Class 12 Chemistry Chapter 9: Amines MCQs & PYQs

Chapter 9 of NCERT Class 12 Chemistry focuses on amines, which are organic compounds derived from ammonia (NH₃) by replacing one or more hydrogen atoms with alkyl or aryl groups. The chapter covers the nomenclature, classification, preparation methods, and reactions of amines. Amines are important in various chemical industries, such as pharmaceuticals, dyes, and agrochemicals. The study of amines is essential for understanding organic chemistry and their practical applications.

This article includes Class 12 Chemistry Chapter 9 resources such as multiple-choice questions (MCQs), previous year questions (PYQs), and downloadable PDFs of Class 12 Chemistry Chapter 9 MCQs and previous year questions.

NCERT Class 12 Chemistry Chapters
Chapter 1: Solutions	Chapter 2: Electrochemistry
Chapter 3: Chemical Kinetics	Chapter 4: The d- and f-Block Elements
Chapter 5: Coordination Compounds	Chapter 6: Haloalkanes and Haloarenes
Chapter 7: Alcohols, Phenols and Ethers	Chapter 8: Aldehydes, Ketones and Carboxylic Acids
Chapter 10: Biomolecules

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Class 12 Chemistry Chapter 9 MCQs

This section includes multiple-choice questions (MCQs) from previous years and expert-curated questions designed for Class 12 Chemistry Chapter 9: Amines. Below are 5 sample questions, with a link to download the full set of MCQs in PDF format.

1.	Two statements are given one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below. Assertion (A): Ammonolysis of alkyl halides is not a suitable method for the preparation of pure primary amines. Reason (R): Ammonolysis of alkyl halides yields mainly secondary amines. (a) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A). (b) Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A). (c) Assertion (A) is true, but Reason (R) is false. (d) Assertion (A) is false, but Reason (R) is true.
2.	The reaction of ammonia with a large excess of methyl chloride will yield mainly: (a) methylamine (b) dimethylamine (c) tetramethylammonium chloride (d) trimethylamine
3.	CH₃CONH₂ on reaction with NaOH and Br₂ in alcoholic medium gives (a) CH₃CH₂NH₂ (b) CH₃CH₂Br (c) CH₃NH₂ (d) CH₃COONa
4.	Out of the following, the strongest base in aqueous solution is (a) Methylamine (b) Dimethylamine (c) Trimethylamine (d) Aniline
5.	Which of the following is least basic? (a) (CH₃)₂NH (b) NH₃(c) (d) (CH₃)₃N

Class 12 Chemistry Chapter 9 Subjective Questions Without Solutions

Here are 5 sample subjective questions based on previous years' CBSE exams (2 marks and above) for Class 12 Chemistry Chapter 9: Amines. For the full set of subjective questions, download the PDF.

1.	(a) Choose the tertiary amine from the following compounds : (b) Complete the following: (CBSE 2022, 3M)
2.	Explain briefly: (a) Carbylamine reaction (b) Gabriel phthalimide synthesis (CBSE 2023, 2M)
3.	Write the chemical equation involved in the following reactions: (a) Carbylamine reaction (b) Gabriel phthalimide synthesis (CBSE 2023, 2M)
4.	Arrange the following compounds as directed : (i) In increasing order of solubility in water : (CH₃)₂NH, CH₃NH₂, C₆H₅NH₂ (ii) In decreasing order of basic strength in aqueous solution : (CH₃)₃N, (CH₃)₂NH, CH₃NH₂ (iii) In increasing order of boiling point : (C₂H₅)₂NH, (C₂H₅)₃N, C₂H₅NH₂ (CBSE 2020, 3M)
5.	Arrange the following in decreasing order of pk_b giving reason : (a) Aniline, p-nitroaniline and p-toluidine (b) C₂H₅NH₂, (C₂H₅)₂NH, (C₂H₅)₃N in gaseous state (CBSE 2019, 3M)

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NCERT Chemistry Topics

Chapter Name	Sub Topics of Chapter 9: Amines
Amines	9.1 Introduction to Amines
	9.2 Classification of Amines
	9.3 Nomenclature of Amines
	9.4 Preparation of Amines
	9.5 Reactions of Amines
	9.6 Basicity of Amines and their Comparison with Ammonia

Review of NCERT Class 12 Chemistry Chapter 9

Amines (Chapter 9) is an essential chapter for understanding organic nitrogen compounds. Amines are derivatives of ammonia, and their functional group is -NH₂. This chapter delves into the classification, nomenclature, preparation, and reactions of amines. Students learn about the synthesis of amines from halides, the reduction of nitro compounds, and the reactivity of amines, including their reactions with nitrous acid to form diazonium salts.

The chapter also covers the physical properties of amines, which are influenced by the presence of hydrogen bonding. Additionally, the basicity of amines is explored, with emphasis on how it is affected by the type of substituent on the nitrogen atom. Reactions like the formation of imines and amides, and the preparation of aromatic amines such as aniline, are fundamental for understanding organic synthesis.

This chapter is crucial for students aiming to pursue further studies in chemistry, as amines play a vital role in the production of pharmaceuticals, dyes, and agricultural chemicals.

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