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Tautomerism is the phenomenon in which t...

Tautomerism is the phenomenon in which two structural isomers differing in the relative position of their atoms are spontaneously interconvertible and can exist in dynamicequilibrium.

Tautomers I and II are structural isomers that are related only by the shift of a hydrogen atom an one or more Pi bond.

A

B

C

D

Text Solution

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The correct Answer is:
C

More stable due to extended conjugation .
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Tautomerism is the phenomenon in which two structural isomers differing in the relative position of their atoms are spontaneously interconvertible and can exist in dynamicequilibrium. CH_(3)-underset((I))overset(O)overset(||)C-CH_(3)iffCH_(3)-underset((II))overset(OH)overset(|)C=CH_(2) Tautomers I and II are structural isomers that are related only by the shift of a hydrogen atom an one or more Pi bond. The relation between the enol contents X, Y, Z should be

Tautomerism is the phenomenon in which two structural isomers differing in the relative position of their atoms are spontaneously interconvertible and can exist in dynamicequilibrium. CH_(3)-underset((I))overset(O)overset(||)C-CH_(3)iffCH_(3)-underset((II))overset(OH)overset(|)C=CH_(2) Tautomers I and II are structural isomers that are related only by the shift of a hydrogen atom an one or more Pi bond. Among these compounds, the order of enol contents should be

Tautomerism is the phenomenon in which two structural isomers differing in the relative position of their atoms are spontaneously interconvertible and can exist in dynamicequilibrium. CH_(3)-underset((I))overset(O)overset(||)C-CH_(3)iffCH_(3)-underset((II))overset(OH)overset(|)C=CH_(2) Tautomers I and II are structural isomers that are related only by the shift of a hydrogen atom an one or more Pi bond.

Constitutional isomerism is also known as structural isomerism. The isomers which differ in the connectivity of their atoms are called constitutional isomers. Which of the compound will show tautomerism?

Constitutional isomerism is also known as structural isomerism. The isomers which differ in the connectivity of their atoms are called constitutional isomers. Which pair is correctly matched?

Structural isomers have different covalent linkage of atoms. Stereoisomers are compounds that have same sequence of covalent bonds but differ in the relative dispositions of their atoms in space. Geometri cal and optical isomers are the two important types of configurational isomers. The compound with double bonds or ring structure have restricted rotation, so exist in two geometrical forms. The double bonds in larger rings (ring size 10 carbon large) can also cause geometrical isomerism. The optical isomers rotate the plane of plane-polarised light. A sp^(3) -hybridised carbon atom bearing four different types of substituents is called an asymmetric centre or chiral centre. A chiral object or molecule cannot be superimposed on its mirror image. Stereoisomers that are mirror images of each other are called enantiomers. The stereosomers that the pot mirror images of each other are called diastereomers. Diasteremers have different physical properties. A racemic mixture is optically inactive and contains equal amounts of both the enantiomers. Resolution refers to method of separating a racemic mixture. Into two pure enantiomers. A meso compound is an optically inactive stereoisomer, which is achiral due to the presence of an internal plane of symmetry or centre of symmetry within the molecule. The following two compounds are

Structural isomers have different covalent linkage of atoms. Stereoisomers are compounds that have same sequence of covalent bonds but differ in the relative dispositions of their atoms in space. Geometri cal and optical isomers are the two important types of configurational isomers. The compound with double bonds or ring structure have restricted rotation, so exist in two geometrical forms. The double bonds in larger rings (ring size 10 carbon large) can also cause geometrical isomerism. The optical isomers rotate the plane of plane-polarised light. A sp^(3) -hybridised carbon atom bearing four different types of substituents is called an asymmetric centre or chiral centre. A chiral object or molecule cannot be superimposed on its mirror image. Stereoisomers that are mirror images of each other are called enantiomers. The stereosomers that the pot mirror images of each other are called diastereomers. Diasteremers have different physical properties. A racemic mixture is optically inactive and contains equal amounts of both the enantiomers. Resolution refers to method of separating a racemic mixture. Into two pure enantiomers. A meso compound is an optically inactive stereoisomer, which is achiral due to the presence of an internal plane of symmetry or centre of symmetry within the molecule. The number of chiral centres present in the following compounds is