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Q.
Which type of isomerism is shown by propanal and propanone?
Rajasthan PMTRajasthan PMT 2006
Solution:
When two compounds have similar molecular formula but differ in the functional group then the isomerism is called functional group Isomerism i.e.,
$CH_3CH_2CHO$ and $CH_3 \overset{\underset{||}{O}}{C}CH_3$