Answer
a) Dinitrogen pentaoxide
b) Tetraphosphorus trisulfide
c) Oxygen sidulfide
d) Xenon tetrafluoride
Work Step by Step
a) Oxygen is the most electronegative: dinitrogen pentaoxide
b) Sulfur is the most electronegative: tetraphosphorus trisulfide
c) Fluorine is the most electronegative: oxygen sidulfide
d) Fluorine is the most electronegative: xenon tetrafluoride