Strongest reducing agent is:

The standard reduction potential at 290K for the following half reactions are, (i) Zn^(2+) +2e rarrZn(s),E^@ =-0.762 V (ii) Cr^(3+) +3e rarr Cr(s), E^@=-0.740 V (iii) 2H^+ 2e rarrH_2(g),E^@=-0.000V (iv) Fe^(3+) +e rarr Fe^2+,E^@=+0.77V Which it the strongest reducing agent :

Consider the standard potential of the following cells, (i) Mg^(2+) +2e rarr Mg,E^@=-2.37V (ii) Zn^(2+) + 2erarrZn,E^@ =-0.76V (iii) Ni^(2+) +2e rarrNi,E^@=-0.25V (iv) Fe^(3+) + 3e rarrFe, E_0=-0.04 V find the strongest reducing agent :

Strongest reducing agent among the following is:

Which is the strongest reducing agent?

Which of the following is the strongest reducing agent?