Answers

2016-03-06T08:18:22+05:30
Both have the same no. of carbon atoms. i.e. 3. Both have a functional group. Propanal has aldehyde and propanone has ketone group. They have almost same molar mass also. 
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2016-03-06T09:14:47+05:30
Both have the same no. of carbon atoms. i.e. 3. Both have a functional group. Propanal has aldehyde and propanone has ketone group. They have almost same molar mass also.
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