Question

The physical constants which are less for $D_{2}O$ than $H_{2}O$ are:

• A. freezing point and boiling point
• B. density and viscosity
• C. solvating ability and dielectric constant
• D. temperature of maximum density

Answer 1

Answer: (C)

solvating ability and dielectric constant

Value of solvating ability and dielectric constant are less for $D_{2}O$ than $H_{2}O$ due to the strong $H$-bonding in $H_{2}O$ and the self ionization power of $H_{2}O$.