Hydrogen has three isotopes : protium $\left({}^1\mathrm{H}\right)$, deuterium (${}^2\mathrm{H}$ or $\mathrm{D}$) and tritium (${}^3\mathrm{H}$ or $\mathrm{T}$). They have nearly same chemical properties but different physical properties. They differ in

Given below are two statements .
Statement $\mathrm{I}$ : In ${\mathrm{CuSO}}_4·5{\mathrm{H}}_2\mathrm{O}, \mathrm{Cu}-\mathrm{O}$ bonds are present.

Statement $\mathrm{II}$ : In ${\mathrm{CuSO}}_4.5{\mathrm{H}}_2\mathrm{O}$, ligands coordinating with $\mathrm{Cu} \left(\mathrm{II}\right)$  ion are $\mathrm{O}$-and $\mathrm{S}$-based ligands.

In the light of the above statements, choose the correct answer from the options given below

Given below are two statements:

Statement I : Hydrogen peroxide can act as an oxidizing agent in both acidic and basic conditions.

Statement II: Density of hydrogen peroxide at $298 \mathrm{K}$ is lower than that of ${\mathrm{D}}_2\mathrm{O}$.

In the light of the above statements. Choose the correct answer from the options.