IIT JEE , AIEEE Forum - Chemistry , Organic Chemistry

coolriya

wat is meant by degree of unsaturation..............?????

rakesh61

degree of unsaturation is a method to calculate the nos of multiple bondsie pi bonds in an organic compound and thus determine the structure of the organic compound

deedee

d formula for degree of unsaturation is

(2n1-n2+2)/2

here n1=carbon atoms

n2=hydrogen atoms

srinathmurthy

Degree of unsaturation is the no of H^₂ moleules required by the molecule 2 become saturated.

Ex: C₂H₄ : Ethene .

requires one molecule of H₂ to become saturated .so DU =1 .

Ex :

cyclopropane has the formula _^C3^H6.

IT REQUIRES 2 H TO become saturated. So. DU = 1 .

Cyclopropene has the fromula C₃H₄.

There is double bond as wel as aring , so it needs 2 molecules of H₂i.e. 4 H atoms , to become saturated.

Formula 4 DU = {( 2C + 2 ) + N + P - H -X } / 2

N - no of Nitrogen atom

P - no of phophorous toms.

H - no of H atoms .

X -no of halogens.

C -no of carbons.

coolriya

tanks evry1 for ur answers........

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