Read and download the CBSE Class 12 Chemistry Amines Assignment for the 2025-26 academic session. We have provided comprehensive Class 12 Chemistry school assignments that have important solved questions and answers for Unit 9 Amines. These resources have been carefuly prepared by expert teachers as per the latest NCERT, CBSE, and KVS syllabus guidelines.
Solved Assignment for Class 12 Chemistry Unit 9 Amines
Practicing these Class 12 Chemistry problems daily is must to improve your conceptual understanding and score better marks in school examinations. These printable assignments are a perfect assessment tool for Unit 9 Amines, covering both basic and advanced level questions to help you get more marks in exams.
Unit 9 Amines Class 12 Solved Questions and Answers
a) In decreasing order of the pKb values:
Ans: C6H5NH2>C6H5NHCH+>C2H5NH2>(C2H5)2NH
b) In increasing order of basic strength:
C6H5NH2, C6H5N(CH3)2, (C2H5)2NH and CH3NH2
Ans: C6H5NH2<C6H5N(CH3)2< CH3NH2<(C2H5)2NH
c) In increasing order of basic strength:
a) Aniline, p-nitroniline and p-toluidine
b) C6H5NH2 , C6H5NHCH3, C6H5CH2NH2
Ans: a)p-nitroaniline<aniline<p-toluidine
b)C6H5NH2<C6H5NHCH3<C6H5CH2NH2
d) In decreasing order of basic strength in gas phase:
C2H5NH2, (C2H5)2NH, (C2H5)3N and NH3
Ans: (C2H5)3N>(C2H5)2NH> C2H5NH2> NH3
e) In increasing order of boiling point:
C2H5OH, (CH3)2NH, C2H5NH2
Ans: (CH3)2NH< C2H5NH2< C2H5OH
f) In increasing order of solubility in water:
C6H5NH2, (C2H5)2NH, C2H5NH2
Ans: C6H5NH2<(C2H5)2NH< C2H5NH2
4) Write short notes on the following:
i) Carbylamine reaction :All primary amines on heating with chloroform and an alcoholic solution of potassium hydroxide produce isocyanide
ii)Diazotisation:The conversion of aniline or other aromatic primary amines into diazonium salts by the action of nitrous acid and dilute hydrochloric acid is called diazotization.
iii)Hofmann’s bromamide reaction :The heating of amine an amide with bromine and caustic alkali to yield an amine with one carbon less than the original amide this reaction is called Hofmann’s bromamide reaction.
iv)Coupling reaction:Reaction of aromatic diazinium salt with phenols and amines to give azo compounds is called coupling reaction.
v)Ammonolysis :Alkyl halides react with alcoholic ammonia to primary,secondary and tertiary amines along with some quaternary ammonium salts.
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Important Practice Resources for Class 12 Chemistry
CBSE Class 12 Chemistry Unit 9 Amines Assignment
Access the latest Unit 9 Amines assignments designed as per the current CBSE syllabus for Class 12. We have included all question types, including MCQs, short answer questions, and long-form problems relating to Unit 9 Amines. You can easily download these assignments in PDF format for free. Our expert teachers have carefully looked at previous year exam patterns and have made sure that these questions help you prepare properly for your upcoming school tests.
Benefits of solving Assignments for Unit 9 Amines
Practicing these Class 12 Chemistry assignments has many advantages for you:
- Better Exam Scores: Regular practice will help you to understand Unit 9 Amines properly and you will be able to answer exam questions correctly.
- Latest Exam Pattern: All questions are aligned as per the latest CBSE sample papers and marking schemes.
- Huge Variety of Questions: These Unit 9 Amines sets include Case Studies, objective questions, and various descriptive problems with answers.
- Time Management: Solving these Unit 9 Amines test papers daily will improve your speed and accuracy.
How to solve Chemistry Unit 9 Amines Assignments effectively?
- Read the Chapter First: Start with the NCERT book for Class 12 Chemistry before attempting the assignment.
- Self-Assessment: Try solving the Unit 9 Amines questions by yourself and then check the solutions provided by us.
- Use Supporting Material: Refer to our Revision Notes and Class 12 worksheets if you get stuck on any topic.
- Track Mistakes: Maintain a notebook for tricky concepts and revise them using our online MCQ tests.
Best Practices for Class 12 Chemistry Preparation
For the best results, solve one assignment for Unit 9 Amines on daily basis. Using a timer while practicing will further improve your problem-solving skills and prepare you for the actual CBSE exam.
You can download free PDF assignments for Class 12 Chemistry Chapter Unit 9 Amines from StudiesToday.com. These practice sheets have been updated for the 2025-26 session covering all concepts from latest NCERT textbook.
Yes, our teachers have given solutions for all questions in the Class 12 Chemistry Chapter Unit 9 Amines assignments. This will help you to understand step-by-step methodology to get full marks in school tests and exams.
Yes. These assignments are designed as per the latest CBSE syllabus for 2026. We have included huge variety of question formats such as MCQs, Case-study based questions and important diagram-based problems found in Chapter Unit 9 Amines.
Practicing topicw wise assignments will help Class 12 students understand every sub-topic of Chapter Unit 9 Amines. Daily practice will improve speed, accuracy and answering competency-based questions.
Yes, all printable assignments for Class 12 Chemistry Chapter Unit 9 Amines are available for free download in mobile-friendly PDF format.