Isomerism is the phenomenon in which two or more compounds have same molecular formula but their structural formula is different. The compounds are called Isomers.
There are 2 types of isomerism.
1) Structural Isomerism which is further classied into 5 more types of isomerisms:
i) Chain Isomerism which is due to difference in nature or the carbon chain e.g. isopentane, neopentane or n-pentane
ii) Position isomerism which is due to the difference in position of the functional group or unsaturated linkage in the same carbon chain. e.g. 1-Chloropropane is the isomer or 2-chloropropane or another example is 1-butene which is isomer of 2-butene
iii) Functional group isomerism in which there are different functional group but same molecular formula. e.g. dimethyl ether is functional group isomer of ethyl alcohol
iv) Metamerism is due to the unequal distribution of carbon atoms on either side of the functional group and such compounds belong to same homologous series. e.g. diethyl ether and methyl n-propyl ether are metamers.
dietheyl ether: CH3 - CH2 - O - CH2 - CH3
methyl n-propyl: CH3 - O - CH2 - CH2 - CH3
v) Tautomerism due to shifting of proton from one atom to other in the same molecule.
The 2nd type of isomerism is Cis-trans Isomerism or geometric isomerism and compounds who possess same structural formula but differ with respect to the positions of the identical groups in space are called cis-trans isomers and the phenomenon is cis-trans or geometric isomerism.
For Geometrical isomerism the free rotation about the bonds should be restricted so a double bonded or cyclic compound may show the geometrical isomerism.
Yes
Functional group isomerism, as 1,2-butadiene and cyclobutene are its isomer, 1-butyne is its positional isomer.
Yes, it does.
It is butane.
Geometric isomerism also known as cis-trans isomerism or E-Z isomerism
The geometrical isomerism is mainly Cis-trans isomerism but in some cases we use another term Z and E isomers, they are almost same.
For Geometrical isomerism the free rotation about the bonds should be restricted so a double bonded or cyclic compound may show the geometrical isomerism.
Yes
George W. Edgett has written: 'Isomerism and What is mind?' -- subject(s): Isomerism, Personality
Functional group isomerism, as 1,2-butadiene and cyclobutene are its isomer, 1-butyne is its positional isomer.
all the non terminal straight chain alkenes show the geometrical isomerism..
a fart
Yes, it does.
resnance and isomerism
It is butane.
It is Butane.