Classes Of Functional Groups
Organic Chemistry deals mostly with carbon and hydrogens, also called hydrocarbons, but those groups which replace hydrogen and bonds with carbon to give a characteristic nature, unique of their own, to the hydrocarbon they are attached to, are called functional groups. All the compounds belonging to a functional group undergo reactions in a similar pattern and are known to have similar physical and chemical properties.
Characteristics Of Functional Groups
In organic chemistry, we encounter a number of special substituent groups which are attached to the hydrocarbon backbone. These groups impart certain characteristics to the molecule of which it is a part of and thus, become the highlight of that particular molecule.
IUPAC Nomenclature
In Chemistry, IUPAC stands for International Union of Pure and Applied Chemistry which suggested a systematic naming approach for the organic and inorganic compounds, as in the beginning stage of nomenclature one single chemical compound was named in many ways by which lead to confusion. The need for this approach aroused as the number of chemical compounds newly discovered were increasing (approximately 32 million compounds) and the basic concept of nomenclature i.e. the trivial nomenclature and the derived system of nomenclature failed to overcome the challenge. It is an important task to name a chemical compound systematically and unambiguously which reduces lots of confusion about the newly reported compounds.
14.5 C & D
![on 14.7
omt s
14.8
isbla
-.11
a.
ketone, or neither:
14.4 Identify each of the following compounds as an aldehyde, a
11
a. CH₂CH₂-C-H
b. CH,−C-O-CH,
C.
C.
||
f. CH₂CH₂-C-NH₂
14.5 Assign IUPAC names to the following aldehydes and ketones:
O
||
CH₂-C-H
0=
b. CH₂CHCH₂CH-C-H
T
CH3 CH3
Br
||
O
||
a. CH₂CH₂-C-H
O
b. CH₂CHCH₂-C-H
O
d. CH₂CH₂CH₂-C-OH
c. CH₂CHCH₂-C- CH₂
CH₂
ID HOO
14.6 Assign IUPAC names to the following aldehydes and ketones:
O
O
||
e. CH₂CH₂-C-CH,
e.
.HO
O=
d. CH₂CH₂CHCH₂ - C-H
CH₂CH₂-C-H
HOO
c. 2,2-dimethyl
d. 3-bromo-4-p
14.9 Draw structural
isomeric aldeh
formula C-H10C
14.10 Draw structura
isomeric aldel
formula C₂H6C
CH,
14.11 Each of the fol
correct name f
a. 3-ethyl-2-1
b. 2-ethyl-pr
c. 4-methyl-
d. 2-methyl
14.12 Each of the
correct nam
a. 3-ethyl-
b. 2-meth
c. 4,5-dib
Physical Pre
14.13 Why doe
ecules of
14.14 Most of
can be
panone
more v
14.15 The bo
of pro
14.16 Expl:
whic
14.17 Use
ecul
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