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Science (English Medium) कक्षा १२ - CBSE Important Questions for Chemistry

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Chemistry
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Write a short note on the following:

Hoffmann’s bromamide reaction

Appears in 1 question paper
Chapter: [9] Amines
Concept: Amines >> Preparation of Amines

Write the structure of 2,4-dinitrochlorobenzene

Appears in 1 question paper
Chapter: [9] Amines
Concept: Amines >> Nomenclature of Animes

Give reasons for the following:

CH3NH2 is more basis than C6H5NH2.

Appears in 1 question paper
Chapter: [9] Amines
Concept: Classification of Amines

Write the IUPAC name of the given compound :

Appears in 1 question paper
Chapter: [9] Amines
Concept: Amines >> Nomenclature of Animes

Illustrate the following reactions giving suitable example in each case 

Ammonolysis

Appears in 1 question paper
Chapter: [9] Amines
Concept: Physical Properties of Amines

Illustrate the following reactions giving suitable example in each case 

Coupling reaction

Appears in 1 question paper
Chapter: [9] Amines
Concept: Diazonium Salts >> Chemical Reaction of Diazonium Salts - Reactions Involving Retention of Diazo Group

Illustrate the following reactions giving suitable example in each case 

Acetylation of amines

Appears in 1 question paper
Chapter: [9] Amines
Concept: Amines >> Chemical Reactions of Amines - Electrophilic Substitution

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

Appears in 1 question paper
Chapter: [9] Amines
Concept: Amines >> Identification of Primary, Secondary and Tertiary Amines

Give the structures of A, B and C in the following reactions :

Appears in 1 question paper
Chapter: [9] Amines
Concept: Amines >> Preparation of Amines

Give the structures of A, B and C in the following reactions :

Appears in 1 question paper
Chapter: [9] Amines
Concept: Amines >> Preparation of Amines

Give the structures of A, B and C in the following reactions :

Appears in 1 question paper
Chapter: [9] Amines
Concept: Amines >> Preparation of Amines

Arrange the following in increasing order of basic strength :

C6H5NH2, C6H5NHCH3, C6H5N(CH3)2

Appears in 1 question paper
Chapter: [9] Amines
Concept: Physical Properties of Amines

Draw the structures of the following compounds :

 N2O5

Appears in 1 question paper
Chapter: [9] Amines
Concept: Amines >> Chemical Reactions of Amines - Reaction with Nitrous Acid

Account for the following:
Gabriel phthalimide synthesis is not preferred for preparing aromatic primary amines.

Appears in 1 question paper
Chapter: [9] Amines
Concept: Amines >> Preparation of Amines

 Account for the following: 
On reaction with benzene sulphonyl chloride, primary amine yields product soluble in alkali whereas secondary amine yields product insoluble in alkali.

Appears in 1 question paper
Chapter: [9] Amines
Concept: Amines >> Chemical Reactions of Amines - Reaction with Arylsulphonyl Chloride

Write structures of compounds A and B in each of the following reactions: 

Appears in 1 question paper
Chapter: [9] Amines
Concept: Structure of Amines

 Write structures of compounds A and B in each of the following reactions:

Appears in 1 question paper
Chapter: [9] Amines
Concept: Amines >> Preparation of Amines

Write chemical equation in support of your answer. 
 Out of  Cl and O2N Cl. which one is more reactive  towards nucleophilic substitution reaction and why?

Appears in 1 question paper
Chapter: [9] Amines
Concept: Amines >> Chemical Reactions of Amines - Reaction with Arylsulphonyl Chloride

An aromatic compound 'A' on heating with Br2 and KOH forms a compound 'B' of molecular formula C6H7N which on reacting with CHCl3 and alcoholic KOH produces a foul-smelling compound 'C'. Write the structures and IUPAC names of compounds A, B, and C.

Appears in 1 question paper
Chapter: [9] Amines
Concept: Diazonium Salts >> Importance of Diazonium Salts in Synthesis of Aromatic Compounds

Write the equation involved in Friedal-Crafts Alkylation of Phenol 

Appears in 1 question paper
Chapter: [9] Amines
Concept: Amines >> Chemical Reactions of Amines - Alkylation and Acylation
< prev  1381 to 1400 of 1512  next > 
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CBSE Science (English Medium) कक्षा १२ Important Questions
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Important Questions for CBSE Science (English Medium) कक्षा १२ Chemistry
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Important Questions for CBSE Science (English Medium) कक्षा १२ English Core
Important Questions for CBSE Science (English Medium) कक्षा १२ English Elective - NCERT
Important Questions for CBSE Science (English Medium) कक्षा १२ Entrepreneurship
Important Questions for CBSE Science (English Medium) कक्षा १२ Geography
Important Questions for CBSE Science (English Medium) कक्षा १२ Hindi (Core)
Important Questions for CBSE Science (English Medium) कक्षा १२ Hindi (Elective)
Important Questions for CBSE Science (English Medium) कक्षा १२ History
Important Questions for CBSE Science (English Medium) कक्षा १२ Informatics Practices
Important Questions for CBSE Science (English Medium) कक्षा १२ Mathematics
Important Questions for CBSE Science (English Medium) कक्षा १२ Physical Education
Important Questions for CBSE Science (English Medium) कक्षा १२ Physics
Important Questions for CBSE Science (English Medium) कक्षा १२ Political Science
Important Questions for CBSE Science (English Medium) कक्षा १२ Psychology
Important Questions for CBSE Science (English Medium) कक्षा १२ Sociology
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