Which of the following correctly shows the oxidation numbers for each of the elements in H2PO4?, I2, and Al(OH)4??
a) H2PO4?: H = +1, P = +5, O = ?2; I2 : I = 0; Al(OH)4? : Al = +3; O = ?2; H = +1
b) H2PO4?: H = +1, P = +5, O = ?2; I2: I = ?2; Al(OH)4?: Al = +3; O = ?2: H = +1
c) H2PO4?: H = +2, P = +5, O = ?2; I2: I = 0; Al(OH)4?: Al = +3; O = ?2; H = +2
d) H2PO4?: H = +1, P = +5, O = ?1; I2: I = 0; Al(OH)4?: Al = +3; O = ?1; H = +1