The S.R.Ps of ${\mathrm{Cu}}^{2+}/\mathrm{Cu},{\mathrm{Hg}}^{2+}/\mathrm{Hg}\text{ and }{\mathrm{Zn}}^{2+}/\mathrm{Zn}$ are respectively 0.34V, 0.85 V and – 0.76 V. The wrong statement is 

Metal with lower SRP reduces all metals higher SRP values.

SRP of Hg is higher than that of Zn. Hg cannot reduce Zn²⁺ but Zn can reduce Hg²⁺.