AIPMT 2013 Physics and Chemistry Paper

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Question : 55 of 90

Marks: +1, -0

The order of stability of the following tautomeric compounds is :-

CH2=

‌‌OH

|

C

−CH2−

O

||

C

−CH3

(I)

⇌

CH3=

O

||

C

−CH2−

O

||

C

−CH3⇌

(II)

CH3−

‌‌‌OH

|

C

=CH−

O

||

C

−CH2

(III)

II > III > I
I > II > III
III > II > I
II > I > III

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