Statement - I : Alkali metals are good reducing agents
Statement - II : Alkali metals possess high oxidation potentials

Reason
1) Due to their large size , nuclear force of attractions on the valency electron is low, Therefore they can easily loses the valency electron and can easily reduces the  other substances and hence they are acting as strong reducing agents.
2) ${\mathrm{E}}_{\mathrm{M}/{\mathrm{M}}^{+}}^{\mathrm{o}}$ of alkalimetal is highly positive [Oxidation potential]