CBSE Class 12 Chemistry Amines Assignment

Read and download free pdf of CBSE Class 12 Chemistry Amines Assignment. Get printable school Assignments for Class 12 Chemistry. Class 12 students should practise questions and answers given here for Unit 13 Amines Chemistry in Class 12 which will help them to strengthen their understanding of all important topics. Students should also download free pdf of Printable Worksheets for Class 12 Chemistry prepared as per the latest books and syllabus issued by NCERT, CBSE, KVS and do problems daily to score better marks in tests and examinations

Assignment for Class 12 Chemistry Unit 13 Amines

Class 12 Chemistry students should refer to the following printable assignment in Pdf for Unit 13 Amines in Class 12. This test paper with questions and answers for Class 12 Chemistry will be very useful for exams and help you to score good marks

Unit 13 Amines Class 12 Chemistry Assignment

 
Level one

1) Write IUPAC names of the following compounds and classify them into primary,secondary andteritary amines.
a) (CH3)2CHNH2
Ans: propan-2-amine(primary)
 
b)CH3(CH2)2NH2
Ans: propan-1-amine(primary)
 
c)CH3NHCH(CH3)2
Ans: N-Methyl propan-2-amine(secondary)
 
d)(CH3)3CNH2
Ans: 2-Methylpropan-2-amine (primary)
 
e)C6H5NHCH3
Ans:  N-Methylaniline (secondary)
 
f)m-BrC6H4NH2
Ans: 3- Bromobenzenamine(primary)
 
2) Give one chemical test to distinguish between the following pairs of compounds.
 
a) Methylamine and dimethylamine
Ans: Methyl amine being a 1° amine will give carbyl amine test,while dimethylamine,a 2° amine will not give this test.
 
b)Ethylamine and aniline
Ans: Aniline will give brilliantly coloured orange dye on diazotization and coupling with phenol. ethylammine on treatment with HNO3(NaOH+HCl) gives N2 and ethanol fails to couple with phenol to give adye
 
d)Aniline and benzylamine
Ans: Aniline (an aromatic primary amine) will give brilliantly coloured orange dye on diazotization and coupling with phenol.Benzylamine which is not an aromatic primary amine will not give this test. It only give N2 and benzyl alcohol with HNO2.
 
e)Aniline and N-methylaniline
Ans: Aniline is a primary amine it will give carbyl amine test while N-methylaniline is a secondary amine,and as such it will not give carbyamine test.
 
3) Arrange the following :

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.
 
 
Please click the link below to download CBSE Class 12 Chemistry Amines Assignment

Unit 12 Aldehydes, Ketones and Carboxylic Acids
CBSE Class 12 Chemistry Aldehydes Ketons Carboxylic Acids Questions

More Study Material

CBSE Class 12 Chemistry Unit 13 Amines Assignment

We hope you liked the above assignment for Unit 13 Amines which has been designed as per the latest syllabus for Class 12 Chemistry released by CBSE. Students of Class 12 should download and practice the above Assignments for Class 12 Chemistry regularly. We have provided all types of questions like MCQs, short answer questions, objective questions and long answer questions in the Class 12 Chemistry practice sheet in Pdf. All questions have been designed for Chemistry by looking into the pattern of problems asked in previous year examinations. 

Assignment for Chemistry CBSE Class 12 Unit 13 Amines

Our team of expert teachers have referred to NCERT book for Class 12 Chemistry to design the Chemistry Class 12 Assignments. If you practice at least one test paper daily, you will get higher marks in Class 12 exams this year. Daily practice of Chemistry course notes and related study material will help you to clear all your doubts and have stronger understanding of all concepts. You can download all Revision notes for Class 12 Chemistry also from www.studiestoday.com absolutely free of cost.

Unit 13 Amines Assignment Chemistry CBSE Class 12

All questions and their answers for the assignment given above for Class 12 Chemistry have been developed as per the latest curriculum and books issued for the current academic year. The students of Class 12 can rest assured that the best teachers have designed the questions of Chemistry so that you are able to revise the entire syllabus if you do the assignments. Lot of MCQ questions for Class 12 Chemistry have also been given in the worksheets and assignments for regular use. All study material for Class 12 Chemistry students have been given on studiestoday.

Unit 13 Amines Assignment CBSE Class 12 Chemistry

Regular assignment practice helps to get a more comprehensive understanding of Unit 13 Amines concepts. Assignments play a crucial role in understanding Unit 13 Amines in CBSE Class 12. Students can download all the assignments of the same chapter in Class 12 Chemistry in Pdf format. You can print them or read them online on your computer or mobile.

CBSE Chemistry Class 12 Unit 13 Amines Assignment

CBSE Class 12 Chemistry latest books have been used for coming up with the latest questions and solutions for the above assignment. If you have revised all concepts relating to Unit 13 Amines then you should attempt all questions given in the test sheets above. We have also provided lot of Worksheets for Class 12 Chemistry which you can use to further make your self stronger in Chemistry

Where can I download in PDF assignments for CBSE Class 12 Chemistry Unit 13 Amines

You can download free Pdf assignments for CBSE Class 12 Chemistry Unit 13 Amines from StudiesToday.com

The assignments for Unit 13 Amines Class 12 Chemistry for have been made based on which syllabus

The Unit 13 Amines Class 12 Chemistry Assignments have been designed based on latest CBSE syllabus for Class 12 Chemistry issued for the current academic year

Can I download and print these printable assignments for Chemistry Unit 13 Amines Class 12

Yes, These printable assignments for Unit 13 Amines Class 12 Chemistry are free to download and print

How many topics are covered in Unit 13 Amines Chemistry assignments for Class 12

All topics given in Unit 13 Amines Chemistry Class 12 Book for the current academic year have been covered in the given assignment

Is there any charge for this assignment for Unit 13 Amines Chemistry Class 12

No, all Printable Assignments for Unit 13 Amines Class 12 Chemistry have been given for free and can be downloaded in Pdf format

How can I download the printable test assignments for Unit 13 Amines Chemistry Class 12

Just click on the View or Download button below, then another window with the Pdf will be visible, just click on the Pdf icon to download the free assignments for Unit 13 Amines Class 12 Chemistry

Are these assignments available for all chapters in Class 12 Chemistry

Yes, apart from Chemistry you can download free assignments for all subjects in Class 12

Can I download solved assignments for Unit 13 Amines CBSE Class 12 Chemistry

Our team of expert teachers at studiestoday.com have provided all answers for the practice questions which have been given in Class 12 Chemistry Unit 13 Amines assignments

For which subject have you provided the assignments on this website?

Solved assignments have been provided on StudiesToday for all chapters in Class 12 Chemistry assignments

Are these assignments for Class 12 Chemistry designed as per CBSE curriculum?

Latest syllabus issued for current academic year by CBSE has been used to design assignments for Class 12

Are there solutions or answer keys for the Class 12 Chemistry assignments

Yes, we have provided detailed answers for all questions given in assignments for Class 12 Chemistry

How can these assignments help Class 12 students prepare for exams?

Download free solved assignments for Class 12 Chemistry and practice them daily to get better marks in examinations

Can students get better understanding of Chemistry concepts taught in Class 12?

Yes, students in Class 12 will be able to understand the concepts by solving Chemistry for Unit 13 Amines

Do the assignments cover important topics in Class 12 Chemistry?

Yes, we have given practice assignments for all important topics given in Unit 13 Amines