а. CH3-CHCH3CH3CH3-CH2-CH2-CH=CH-CH2-CH3б. CH3-CHCH3CH3CH3-CH=CH-CH2-CH=CH-CH3в. CH3-CH2-CH=CH-CH2-CH3
а. CH3-CHCH3CH3CH3-CH2-CH2-CH=CH-CH2-CH3
б. CH3-CHCH3CH3CH3-CH=CH-CH2-CH=CH-CH3
в. CH3-CH2-CH=CH-CH2-CH3