Higher priority Cl Cl B (E)-1-Bromo-1s2-dichloroethene (Z)-1-Bromo-1, 2-dichloroethene (cis)-2-Bromo-1, 2-dichloroethene (trans )-2-Bromo-1, 2-dichloroethene (HHH) Higher priority H3C、 CH3 H3C CH2CH3 CH H CH2CH 3 CH3 CH3CH2> CH3 (CHH) E)-3-Methyl-2-pentene (2-3-Methyl-2-pentene (cis)-3-Methyl-2-pentene (trans )-3-Methyl-2-penteneCl H Cl Br (E)-1-Bromo-1,2-dichloroethene (cis)-2-Bromo-1,2-dichloroethene Higher priority Cl H Br Cl Cl H Br Cl (Z)-1-Bromo-1,2-dichloroethene (trans)-2-Bromo-1,2-dichloroethene H3C H CH3 CH2CH3 (E)-3-Methyl-2-pentene (cis)-3-Methyl-2-pentene Higher priority H3C H CH2CH3 CH3 CH3 H (HHH) (CHH) (Z)-3-Methyl-2-pentene (trans)-3-Methyl-2-pentene CH3CH2 CH3