Question

if one hydrogen atom of propane is replaced by a Ketone group then molecular formula of the compound obtained is​

Answer 1

Explanation:

CH3-COO-CH3 is the correct answer as ketones contains oxygen as hetero atom it has double bond so the hydrogen gets replaced by oxygen

Answer 2

If one hydrogen atom of propane is replaced by a Ketone group then molecular formula of the compound obtained is​ CnH₂n+1 CO.

Explanation:

When hydrogen of alkane is replaced by  different functional groups ,we get different compounds .

The functional groups are of different types ,some of them are listed below :

• Alcohol - F.group OH is present .
• Aldehyde - F.group CHO is present
• Ketone --F.group CO is present .
• Carboxylic acid --F.group COOH is present .

The general formula for alkane is CnH₂n+2  

But when one of the hydrogen is replaced by Functional group , the formula becomes CnH₂n+1 (F.Gp)