NEETChemistryGeneral Organic Chemistry
Assertion A : Enol form of acetone CH 3 COCH 3 exists in < 0 . 1 % quantity. However, the enol form of acetyl acetone CH 3 COCH 2 OCCH 3 exists in approximately 15 % quantity. Reason R : enol form of acetyl acetone is stabilized by intramolecular hydrogen bonding, which is not possible in enol form of acetone. Choose the correct statement:
Options
- AA is false but R is true
- BBoth A and R are true and R is the correct explanation of A
- CBoth A and R are true but R is not the correct explanation of A
- DA is true but R is false
Correct answer
B. Both A and R are true and R is the correct explanation of A
Step-by-step solution
Acetyl acetone in enol form have intramolecular H-bonding, which is absent in acetone. enol form of Acetyl acetone is stabilised by conjugation and by intramolecular H-bonding. enol form of acetone is very less < 0 . 1 %