а) CH3 - CH(CH3) - C(CH3)(CH3) - CH(CH3) - CH2 - CH3
б) CH3 - CH(CH3) - CH(CH3) - CH(CH3) - CH3
в) CH3 - C(CH3)(CH3) - CH2 - C H2- CH3
г) CH3 - CH(CH3) - CH(CH3) - CH(CH3) - CH2 - CH3
а) CH3 - CH(CH3) - C(CH3)(CH3) - CH(CH3) - CH2 - CH3
б) CH3 - CH(CH3) - CH(CH3) - CH(CH3) - CH3
в) CH3 - C(CH3)(CH3) - CH2 - C H2- CH3
г) CH3 - CH(CH3) - CH(CH3) - CH(CH3) - CH2 - CH3