Which of the following is not true

Physical Constants : D2O > H2OReason, Due to high molecular weight of D2O[20] than  that of H2O.Molecular mass ∞Physical constantsException Dielectric constant (D)[Dielectric const] D : H2O > D2O→ Ordinary water is electrolysed more rapidly than D2OReason ; Dielectric constant of water [DH2O] > Dielectric constant of D2O[DD2O]Note : Dielectric constant is the ability of a solvent to ionise the bond of a salt.Higher the dielectric constant higher will be the ionisation ability.→ Bond Dissociation energy :As bond dissaciation energy ↓es reactivity with Cl2 ↑es.