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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.
`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

A

X `gt` Y `gt` Z

B

Z `gt` Y `gt` X

C

Y `gt` X `gt` Z

D

Y `gt` Z `gt`

Text Solution

Verified by Experts

The correct Answer is:
B
`Z gt Y gt X`
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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. Tautomers I and II are structural isomers that are related only by the shift of a hydrogen atom an one or more Pi bond.

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. Among these compounds, the order of enol contents should be

Knowledge Check

  • 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

    A
    I `gt` II `gt` III
    B
    III `gt` II `gt` I
    C
    III `gt` I `gt` II
    D
    II `gt` III `gt` I

  • CH_(3)-overset(O)overset(||)C-overset(OH)overset(|)underset((I))CH-Ph overset(Theta)overset(OH)to(II) (I) isomerizes to (II) on addition on small amount of base structure of (II) is

    A
    `CH_(3)-overset(OH)overset(|)CH-overset(OH)overset(|)CH-Ph`
    B
    `H-overset(O)overset(||)C-CH_(2)-overset(OH)overset(|)CH-Ph`
    C
    `CH_(3)-underset(OH)underset(|)CH-underset(O)underset(||)C-Ph`
    D
    `CH_(3)-underset(O)underset(||)C-underset(O)underset(||)C-Ph`

  • I) CH_(3)-CH_(2)-CH_(2)CH_(2)-OH II) CH_(3)-CH_(2)-underset(OH)underset(|)CH-CH_(3) III) CH_(3)-underset(CH_(3))underset(|)overset(OH)overset(|)C-CH_(3) Among these , III is the chain isomer of

    A
    I only
    B
    II only
    C
    both I and II
    D
    none of these

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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. 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

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