Which of the following is the stable enol form of $1, 3 -$ cyclohexanedione?

i

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i i

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i i i

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i v

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v

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Solution

The correct option is A $i$
Since $α - H$ corresponding to alkene(enol) contribute towards the stability of enol. So maximum $α - H$ is in case of 'A' forms. i.e. $4 α - H$ . So it is most stable.

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Similar questions

Q. Which of the following is the most stable enol form of 1,3-cyclohexanedione?

Q. Arrange the following alcohols in the decreasing order of their ease of dehydration with

H_{2} S O_{4}

Which of the following is most stable, and which one is least ?
$H C H O$ $C H_{3} C H O$
I II

$C H_{3} C O C H_{3}$ $C l_{3} C C H O$
III IV

Mark the correct order of decreasing acid strength of the following compounds.

(a) V > IV > II > I > III
(b) II > IV > I > III > V
(c) IV > V > III > II > I
(d) V > IV > III > II > I

Which of the following are molecules?

(i) O₂

(ii) Argon

(iii) Ammonia

(iv) Helium

(v) Water

(vi) Sugar

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Which of the following is the stable enol form of 1,3−cyclohexanedione?

The correct option is A iSince α−H corresponding to alkene(enol) contribute towards the stability of enol. So maximum α−H is in case of 'A' forms. i.e. 4α−H . So it is most stable.

Which of the following is the stable enol form of $1, 3 -$ cyclohexanedione?

The correct option is A $i$
Since $α - H$ corresponding to alkene(enol) contribute towards the stability of enol. So maximum $α - H$ is in case of 'A' forms. i.e. $4 α - H$ . So it is most stable.