Question
Which among the given molecules can exhibit tautomerism?
Which among the given molecules can exhibit tautomerism?
A.
III Only
B.
Both I and III
C.
Both I and II
D.
Both II and III
Answer :
III Only
Solution :
In tautomerism, $$\alpha - hydrogen$$ must be present in the molecule. Thus, molecule II will not show tautomerism. As at bridge, double bond is highly unstable. Thus, molecule I will also not show tautomerism.
For III molecule,
So only, III molecule will show tautomerism. Thus, correct option is (A).
In tautomerism, $$\alpha - hydrogen$$ must be present in the molecule. Thus, molecule II will not show tautomerism. As at bridge, double bond is highly unstable. Thus, molecule I will also not show tautomerism.
For III molecule,
So only, III molecule will show tautomerism. Thus, correct option is (A).