Question

what is the upac name of (CH3)2CHCH=CHCH2COCH3​

Answer 1

Explanation: CH3− CH − HC − CH3

                                 | CH3 | CH3  

​Methyl substituent is present at 2nd and 3rd carbon in parent chain so prefix would be 2,3-dimethyl and the parent chain contains 4 carbon therefore suffix would be butane.