Which of the following statements is not true?

• A
  Ordinary water is electrolysed more rapidly than $D_2O$
• B
  Reaction between $H_2$ and $Cl_2$ is much faster than $D_2$ and $Cl_2$
• C
  $D_2O$ freezes at a lower temperature than $H_2O$
• D
  Bond dissociation energy for $D_2$ is greater than $H_2$