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Give the structures of A, B and C in the following reactions :
Concept: Preparation of Amines
Account for the following:
pKb of aniline is more than that of methylamine.
Concept: Concept of Amines >> Nomenclature of Animes
How will you convert ethanoic acid into methanamine?
Concept: Concept of Amines >> Nomenclature of Animes
Give reasons CH3NH2 is more basic than C6H5NH2.
Concept: Physical Properties of Amines
Do the following conversions in not more than two steps :
Ethyl benzene to Benzoic acid
Concept: Concept of Amines >> Nomenclature of Animes
Do the following conversions in not more than two steps :
Propanone to Propene
Concept: Concept of Amines >> Nomenclature of Animes
Orange colour of `Cr_2O_7^(2–)` ion changes to yellow when treated with an alkali. Why?
Concept: Concept of Amines >> Chemical Reactions of Amines - Alkylation and Acylation
Which alkyl halide from the following pair is chiral and undergoes faster SN2 reaction?
Concept: Concept of Amines >> Chemical Reactions of Amines - Alkylation and Acylation
Out of SN1 and SN2, which reaction occurs with
(a) Inversion of configuration
(b) Racemisation
Concept: Concept of Amines >> Chemical Reactions of Amines - Alkylation and Acylation
Using IUPAC norms, write the formula of Hexaamminecobalt(III) sulphate.
Concept: Concept of Amines >> Nomenclature of Animes
What is the role of pyridine in the acylation reaction of amines?
Concept: Concept of Amines >> Chemical Reactions of Amines - Alkylation and Acylation
An organic compound (A) with molecular formula C3H7NO on heating with Br2 and KOH forms a compound (B). Compound (B) on heating with CHCl3 and alcoholic KOH produces a foul-smelling compound (C) and on reacting with C6H5SO2Cl forms a compound (D) which is soluble in alkali. Write the structure of (A), (B), (C) and (D).
Concept: Concept of Amines >> Nomenclature of Animes
Give reasons:
(CH3)2NH is more basic than (CH3)3N in an aqueous solution.
Concept: Concept of Amines >> Identification of Primary, Secondary and Tertiary Amines
Write the structures of A, B and C in the following reaction:
Concept: Diazonium Salts >> Chemical Reaction of Diazonium Salts - Reactions Involving Displacement of Nitrogen
Write the structures of A, B and C in the following reaction:
Concept: Concept of Amines >> Chemical Reactions of Amines - Reaction with Nitrous Acid
Arrange the following in increasing order of their boiling point:
C2H5OH, C2H5NH2, (C2H5)3N
Concept: Physical Properties of Amines
Which of the following would not be a good choice for reducing nitrobenzene to aniline?
Concept: Preparation of Amines
How can the activating effect of the −NH2 group in aniline be controlled?
Concept: Concept of Amines >> Chemical Reactions of Amines - Electrophilic Substitution
Explain why (CH3)2NH is more basic than (CH3)3N in aqueous solution.
Concept: Concept of Amines >> Identification of Primary, Secondary and Tertiary Amines
Illustrate Sandmeyer's reaction with an equation.
Concept: Diazonium Salts >> Chemical Reaction of Diazonium Salts - Reactions Involving Displacement of Nitrogen
