Arrange radioactive radiations in the increasing order of their penetrating powers

Arrange the following in the increasing order of acidic character.

Given the standard electrode potentials: K^+/K=-2.93V . Ag^+/Ag=0.80V',Arrange these metals in their increasing order of reducing power.

Arrange the given electromagnetic radiations in the descending order of their frequencies. Infarred, X-rays, ultraviolet and gamma rays.

Give the standard electrode potentials: Mg^2+ / Mg = -2.37 V, Cr^3+/Cr = - 0.74V . Arrange these metals in their increasing order of reducing power.

Arrange the following metals in the increasing order of reactivity.