Question

Arrange the following in the increasing order of expected enol content
i. $CH _3 COCH _2 CHO$
ii. $CH _3 COCH _3$
iii. $CH _3 CHO$
iv. $CH _3 COCH _2 COCH _3$

• A. iii $<$ i $<$ ii $<$ iv
• B. iii $<$ ii $<$ i $<$ iv
• C. i $<$ iv $<$ ii $<$ iii
• D. iv $<$ i $<$ ii $<$ iii

Answer 1

Answer: (B)

Order of enol content:
Aldehyde< Ketone < Keto-aldehyde < Diketone
(iii < ii < i < iv)