PPT: Isomerism | Chemistry for JEE Main & Advanced PDF Download

 Page 1


ISOMERISM
• What is isomerism:-
The compounds which have the some
molecular formula but differ from each
other in physical or chemical properties are
called isomer and the phenomenon is
called isomerism.
There are two main type of isomerism
• Structural isomerism
• Stereo isomerism
Page 2


ISOMERISM
• What is isomerism:-
The compounds which have the some
molecular formula but differ from each
other in physical or chemical properties are
called isomer and the phenomenon is
called isomerism.
There are two main type of isomerism
• Structural isomerism
• Stereo isomerism
• 1. Structural Isomerism:- When the isomerism
is due to difference in the arrangement of atoms
within the molecules without any reference to
space is called structural isomerism.
• (a) Chain isomerism: Structural isomerism is of
five type chain isomer have the same molecular
formula but differ in the order in which the
carbon atoms are bonded to each other.
• Example : n-Butane and isobutane
Page 3


ISOMERISM
• What is isomerism:-
The compounds which have the some
molecular formula but differ from each
other in physical or chemical properties are
called isomer and the phenomenon is
called isomerism.
There are two main type of isomerism
• Structural isomerism
• Stereo isomerism
• 1. Structural Isomerism:- When the isomerism
is due to difference in the arrangement of atoms
within the molecules without any reference to
space is called structural isomerism.
• (a) Chain isomerism: Structural isomerism is of
five type chain isomer have the same molecular
formula but differ in the order in which the
carbon atoms are bonded to each other.
• Example : n-Butane and isobutane
• (b) Position isomerism:- In this isomer have the
same molecular formula but differ in the position
of a functional group on the carbon chain.
• Example : 1-Bromobutene and 2- Bromobutane
Page 4


ISOMERISM
• What is isomerism:-
The compounds which have the some
molecular formula but differ from each
other in physical or chemical properties are
called isomer and the phenomenon is
called isomerism.
There are two main type of isomerism
• Structural isomerism
• Stereo isomerism
• 1. Structural Isomerism:- When the isomerism
is due to difference in the arrangement of atoms
within the molecules without any reference to
space is called structural isomerism.
• (a) Chain isomerism: Structural isomerism is of
five type chain isomer have the same molecular
formula but differ in the order in which the
carbon atoms are bonded to each other.
• Example : n-Butane and isobutane
• (b) Position isomerism:- In this isomer have the
same molecular formula but differ in the position
of a functional group on the carbon chain.
• Example : 1-Bromobutene and 2- Bromobutane
• Functional isomerism:- Functional isomer
have the same molecular formula but different
functional groups.
Page 5


ISOMERISM
• What is isomerism:-
The compounds which have the some
molecular formula but differ from each
other in physical or chemical properties are
called isomer and the phenomenon is
called isomerism.
There are two main type of isomerism
• Structural isomerism
• Stereo isomerism
• 1. Structural Isomerism:- When the isomerism
is due to difference in the arrangement of atoms
within the molecules without any reference to
space is called structural isomerism.
• (a) Chain isomerism: Structural isomerism is of
five type chain isomer have the same molecular
formula but differ in the order in which the
carbon atoms are bonded to each other.
• Example : n-Butane and isobutane
• (b) Position isomerism:- In this isomer have the
same molecular formula but differ in the position
of a functional group on the carbon chain.
• Example : 1-Bromobutene and 2- Bromobutane
• Functional isomerism:- Functional isomer
have the same molecular formula but different
functional groups.
• (d) Metamerism : This type of isomerism
is due to the unequal distribution of carbon
atoms on either side of the functional
group.
Example: Diethyl ether and methyl propyl
ether
CH
3
CH
2
–O –CH
2
CH
3
CH
3
–O –CH
2
CH
2
CH
3
Diethyl ether Methyl propyl ether