Ok this is it..
 
 Which element is oxidized and which is reduced in the following reactions?  N2(g) + 3H2(g) rightarrow 2NH3(g)  Express your answer as chemical symbols separated by a comma. Enter the oxidized element first.  3Fe(NO3)2(aq) + 2AI(8) rigtharrow 3Fe(8) + 2AI(NO3)3 (aq)  Express your answer as chemical symbols separated by a comma. Enter the oxidized element first  CI2(aq) + 2 Nal(aq) rightarrow I2(aq) + 2NaCI(aq)  Express your answer as chemical symbols separated by a comma. Enter the oxidized element first  Pbs(8) + 4H2O2(aq) rightarrow PbSO4(8) + 4H20 (l)  Express your answer as chemical symbols separated by a comma. Enter the oxidized element first
oxidisation means increase in oxidation no and reduction decrease....
 A-H,N
 B-Al,Fe
 C-I,Cl
 D-S,O