H2O and H2O2 represent the same compound.
False
H2O is water whereas H2O2 is hydrogen peroxide. Both are different compounds with different chemical and physical properties. The very fact that they have a different number of atoms making them up is an indication of this fact. Like in the case of water, there are 2 hydrogen atoms and one oxygen atom but in hydrogen peroxide, there are 2 hydrogen atoms and 2 oxygen atoms.
Therefore, the statement is incorrect.