Assertion A : Enol form of acetone [CH3COCH3] exists in <0.1% quantity. However, the enol
form of acetyl acetone [CH3COCH2OCCH3] exists in approximately 15% quantity.
Reason R : Enol form of acetylacetone is stabilized by intramolecular hydrogen bonding, which is
not possible in enol form of acetone.
Choose the correct statement:
Assertion A : Enol form of acetone [CH3COCH3] exists in <0.1% quantity. However, the enol
form of acetyl acetone [CH3COCH2OCCH3] exists in approximately 15% quantity.
Reason R : Enol form of acetylacetone is stabilized by intramolecular hydrogen bonding, which is
not possible in enol form of acetone.
Choose the correct statement:
Option 1 -
Both A and R are true and R is the correct explanation of A
Option 2 -
A is true but R is false
Option 3 -
) A is false but R is true
Option 4 -
Both A and R are true but R is not the correct explanation of A
-
1 Answer
-
Correct Option - 4
Detailed Solution:The enol form of acetone exists in less than 0.1% quantity, since its keto form is highly stable. But in the case of acetylacetone, the enol form is stabilized by intramolecular H-bonding, so its quantity increases to approximately 15%.
The intramolecular H-bond in the enol form of acetylacetone is shown.
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