Answer
See answer below.
Work Step by Step
a) F: -1
$-1=nOx_{P}-1\times6$
$nOx_{P}=+5$
b) O: -2 (not a fluoride)
H: +1 (not a hydride)
$-1=+1\times2+nOx_{As}-2\times4$
$nOx_{As}=+5$
c) O: -2 (not a fluoride)
$+2=+nOx_{U}-2\times2$
$nOx_{U}=+6$
d) O: -2 (not a fluoride)
$0=2\times nOx_{N}-2\times5$
$nOx_{N}=+5$
e) O: -2 (not a fluoride)
Cl: -1 (not a fluoride or oxide)
$0=-2+ nOx_{P}-1\times3$
$nOx_{P}=+5$
f) O: -2 (not a fluoride)
$-2=nOx_{Xe}-2\times4$
$nOx_{Xe}=+6$
