(iii)
(iv)
Primary amine contains 
group:
secondary amine 
group: tertiary amine 
group.
.
(ii) Write IUPAC names of all
the isomer
(iii) What type of isomerism is
exhibited by different pairs of amines?
(i) Recall the definition of
isomerism; rules of IUPAC nomenclature; types of isomerism.
(ii) Draw all the structures
possible for molecular formula and give their IUPAC
name according to rules.
(iii) Also compare all the structures to
find the property like chain length, position of functional group, nature of
functional group etc. in which the structures differ.
into
hexan-1, 6-diamine?
(i)
Nitration followed by reduction, as 
, cannot be introduced
directlyinto benzene ring.
(ii)
After forming aniline, methylation of amino group.
(iii) Reaction
with ale. KCN followed by reduction,
and
(ii) 
(iii) 
(a) Presence of electron donating R
group increases the basicity ofamines. However, 
amines in aqueous solution
are less basic due to steric hindrance.
(b)
Ahphatic amines are more- basic than aromatic bases because in later lone pair
takes part in delocalization, so less available for donation,
(ii) 
. Write IUPAC names of
the isomers whichwill liberate nitrogen gas on treatment with nitrous acid.
(1) Write all the structures
possible for molecular formula . Give their IUPAC name
and classify them into 
group), 
group)
and 3° (
group)
(2) Primary amines (1°) will liberate 
on
reaction with 
.
and
nitration.
(ii) Bromination, diazotization
and reduction (BY 
).
(ii)
(iii) 
(iv)
(v)
(vi)
(vii) 
(1) Recall the rules of IUPAC
nomenclature and write their name.
(2) Classify them as 
(primary, secondary
tertiary ?N)
benzyl amine or aromatic
amine.
(b) Only 
amines (all
types) give carbylamine reaction. and
aliphatic
amines give Libermann?snitrso reaction.
(c) Aromatic amines give dye test. i.e.,
diazotization followed by coupling.
of aniline is
more than that of methyl amine.
(ii) Ethylamine is soluble in
water whereas aniline is not.
(iii) Methyl amine in water
reacts with ferric chloride to precipitatehydrated ferric oxide.
(iv) Although amino group is o-
and p- directing in aromatic electrophilic substitution, aniline on nitration
gives a substantial amount of m-nitroaniline.
(v) Aniline does not undergo
Friedel Crafts reaction.
(vi) Diazonium salts of aromatic
amines are more stable than those ofaliphatic amines.
(vii) Gabriel phthalimide
synthesis is preferred for synthesizing primaryamines.
(i) Higher the value,
lesser is the basicity, i.e., tendency to donate electrons.
(ii) Hydrogen bonding, which is
shown by compounds containing 
or 
bond. Bulkiness
of the group attached to such bonddecreases the extent of H-bonding.
(iii) Consider reaction mechanism.
(iv) Formation of anilinium ion
which is m-directing.
(v) Aniline is a Lewis base so form sail
with Lewis acid.
(vi) Stability due to resonance
(vii) No production of secondary and
tertiary amines.
values
and 
.
(ii) In increasing order of
basic strength:
and 
.
(iii) In increasing order of basic
strength:
(a) Aniline, p-nitroaniline and
p-toluidine
(b) 
.
(iv) In decreasing order of
basic strength in gas phase:
and 
.
(v) In increasing order of
boiling point:
.
(vi) In increasing order of
solubility in water:
In points (i) to (iv) factors affecting
basic strength similar as intext Q.4.(v) Stronger the intermolecular forces of
attraction, higher is the boiling point. Moreover molecules capable of forming
H-bond also have highboiling point. (vi) Higher the tendency to form H-bond,
more is the solubility. Extent of H-bundling is more in 
amine than in 
and 
amines.
formation of amide by
reacting with 
Hofmann bromamide
reaction i.e., reaction with 
.
(ii) Partial hydrolysis, Hofmann
bromamide reaction.
(iii) Chlorination (reaction
with 
or 
) substituting 
by CN
(using alc. KCN, hydrolysis.
(iv) Reaction with 
,
oxidation, amide formation (by reaction with),then amine formation (i.e.,
Hofmann brornamide reaction).
(v) Reduction (by 
),
iodination cyanide formation, hydrolysis.
(vi) Alcohol formation i.e.,
reaction with 
iodination. Cyanide
formation reduction.
(vii) Reduction into
by 
carbylamine
reaction, reduction.
(viii) Amide formation (reaction with ), Hofmann?sbromamide
reaction, reaction with nitrous acid, oxidation.
) as it reacts
differently with 
and 
amines.
to convert 
to 
) diazotization,cyanide formation, hydrolysis (to convert 
into 
).
(ii) Nitration, i.e., introduction of group in benzene nucleus bynitrating agent, bromination (by 
) at m-position, reductionby to convert into 
diazotization (conversion ofinto 
group) followed by hydrolysis (conversion of into 
group).
(iii) Amide formation, i.e., reaction with 
followed by Hofmannbromanmide reaction, i.e., conversion of 
group into .
(iv) Bromination to introduce Br atom at 2,4 and 6 position, diazotization and fluorination to convert into ?F group.
(v) Nitrile formation, i.e., conversion of 
into by ale. KCN, followed by reduction.
(vi) Nitration by nitrating mixture (cone. 
) followed by reduction with (conversion of into group).
(vii) Acetylation to protect group, bromination at p-position (by) and hydrolysis.
(Viii) Hofmann bromamide reaction to convert into 
diazotization and reaction with 
to convert into. 
Friedel Crafts alkylation to introduce 
group.
(ix) Diazotization and cyanide formation by reacting with 
and
reduction to convert into 
and reaction withnitrous acid 
to convert into
(ii)
(iii)
(iv)
(v)
(vi)
Different processes involved are
as follows:
(i) Nitrile formation, amide
formation, amine formation.
(ii) Nitrile formation,
hydrolysis, ammonolysis (amide formation),
(iii) Nitrite formation,
reduction, formation or alcohol.
(iv) Reduction, diazotization, hydrolysis.
(v) Amide formation, amine
formation, alcohol formation.
(vi) Reduction, diazotization
condensation.
on treatment with aqueousammonia and heating forms compound 'B' which on heating with Big andKOH forms a compound 'C' of molecular formula 
. Write thestructures and IUPAC names of compounds A, B and C.
(ii)
(iii)
(iv)
(v)
(vi)
(vii)
(i) Carbylamine reaction, i.e.,
conversion of
into
group,
(ii) 
converts
into
?H and oxidation of 
.
(iii) Introduction of
group at para-position.
(iv) Conversion of into
?H and oxidation of alcohol.
(v) Bromination, i.e., Br atoms
occupy 2,4 and 6 positions.
(v) Condensation reaction.
(vii) Fluorination. i.e., introduction
of F atom and its conversion to group.
where, X is halogen)
bond and in aromatic halides bond acquires double
bond character.
and 
bonds,
(ii)
More is the ease of H?bond formation, higheris the boiling point.
(iii) Resonance
and proton at ion in case of aromatic amines,
question_answer27)
Which
of the following is the weakest Bronsted base?
(a) 
(b) 
(c)
(d) 
question_answer35)
Hofmann
Bromamide Degradation reaction is shown by..............
(a)
(b)
(c)
(d)
question_answer37)
Methylamine
reacts with 
to form ?.
(a) 
(b) 
(c) 
(d) 
question_answer46)
Which
of the following compounds is the weakest Bronsted base?
(a) 
(b) 
(c)
(d) 
question_answer55)
The
product of the following reaction is...........
(a) 
(b) 
(c)
(d) 
question_answer58)
Which
of the following reactions are correct?
(a) 
(b) 
(c) 
(d) 
question_answer61)
What
is the role of 
in the nitrating
mixture used for nitration of benzene?
question_answer62)
Why
is 
group of aniline acetylated
before carrying out nitration?
question_answer63)
What
is the product when 
reacts with ?
question_answer64) What is the best reagent to convert nitrile to primary amine?
View Answer play_arrow question_answer65)
Give
the structure of 'A' in the following reaction.
question_answer66) What is Hinsberg reagent?
View Answer play_arrow question_answer68)
Why
does acetylation of 
group of aniline
reduce its activating effect?
question_answer69)
Explain
why 
is stronger base than MeOH?
question_answer70) What is the role of pyridine in the acylation reaction of amines?
View Answer play_arrow question_answer73)
Arrange
the following compounds in increasing order of dipole moment.
question_answer74) What is the structure and IUPAC name of the compound, allyl amine?
View Answer play_arrow question_answer75)
Write
down the IUPAC name of
question_answer78)
Complete
the following reaction.
question_answer79) Why is aniline soluble in aqueous HCl?
View Answer play_arrow question_answer80)
Suggest
a route by which the following conversion can be accomplished.
question_answer81)
Identify
A and B in the following
reaction.
question_answer85)
How
will you bring out the following conversion?
question_answer86)
How
will you carry out the following conversion?
question_answer87)
How
will you carry out the following conversion?
question_answer88)
How
will you carry out the following conversions?
question_answer89) Match the reactions given in Column I with the statements given in Column II.
| Column I | Column II | ||
| (i) | Ammonolysis | (a) | Amine with lesser number of carbon atoms |
| (ii) | Gabriel phthalimide synthesis | (b) | Detection test for primary amines |
| (iii) | Hermann Bromamidt reaction | (c) | Reaction of phthalimide with KOH and R?X |
| (iv) | Carbylamine reaction | (d) |
Reaction
of alkyl halides with 
|
question_answer90) Match the compounds given in Column I with, the items given in Column II.
| Column I | Column II | ||
| (i) | Benzenesulphonyl chloride | (a) | Zwitterion |
| (ii) | Sulphanilic acid | (b) | Hinsberg reagent |
| (iii) | Alkyldiazonium salts | (c) | Dyes |
| (iv) | Aryldiazonium salts | (d) | Conversion to alcohols |
question_answer100)
Predict
the reagent or the product in the following reaction sequence.
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(a) 
(c)
(d) 
(b)
(d) 
(IV)
(b) 
(c)
(d) 
