[xstrae]

Can someone explain to me which of the following is the strongest reducing agent and why?

a) Cr (s)
b) Fe2+ (aq.)
c) Zn (s)
d) H2 (g)

Thanks!

By the way, my teacher says that Zn is the right answer. However I feel that the others are more suitable. Isnt Zn is more elecrtronegative than either of the 3? please guide me if i am wrong. thanks again!

[AWK]

http://www.chemguide.co.uk/physical/redoxeqia/predict.html