Question

iupac name of CH3-C(CH3)2-CH2-CH2-CH(HC3)-CH2-CH3​

Answer 1

Answer:

I'll assume you mean (CH3)2-CH-CH=CH2. Carbons all need four bonds. In that case the name would be 3-methyl-but-1-ene. Numbering is based on the double bond, so alkene would be 1, making the methyl group on number 3.