Chemistry - Hydrogen and Its compound Question with Solution | TestHub

If ' X ' represents number of characteristics among Melting point, Boiling point, $\left|\Delta {\mathrm{H}}_{\mathrm{f}}^0\right|,\Delta {\mathrm{H}}_{\text{vapourization }}$, (Temperature of maximum density), Viscosity, Dielectric constant and Density which have higher value for ${\mathrm{H}}_2\mathrm{O}$ as compared to ${\mathrm{D}}_2\mathrm{O}$.

"Y" represents number of characteristics among Melting point,   Boiling point,   Density,   ΔH_fusion , ΔH_vaporisation ,   ΔH_{bond dissociation} ,    and Internuclear distance having higher value for

H₂as compared to D₂.

Then value of |X – Y| is ______.