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Direction (Q. Nos. 19-20) Consider the f...

Direction (Q. Nos. 19-20) Consider the following four compounds
(I) `CH_(3) - CH_(2) - CH_(2) - CH_(2) - overset(O)overset(||)(C) - H`
(II) `CH_(3) - CH_(2) - CH_(2) - overset(O)overset(||)(C) - CH_(3)`
(III) `CH_(3) - CH_(2) - underset(O)underset(||)(C) - CH_(2) - CH_(3)`
(IV) `CH_(3) - underset(CH_(3))underset(|)(CH) - CH_(2) - underset(O)underset(||)(C) - H`
Which of the following pairs are not functional group isomers ?

A

II and III

B

II and IV

C

I and IV

D

I and II

Text Solution

Verified by Experts

The correct Answer is:
A, C
Two or more compounds having the same molecular formula but different functional groups are called functional isomers.
I. Aldehyde II. Ketone
III. Ketone IV. Aldehyde
Here, II and III, I and IV are not functional group isomers. Thus, options (a) and (c) are correct
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