Which of the following statements are correct?

Ionic product of  $D_{2}O(1.35\times {10}^{-15})$  is less than ordinary water $1\times {10}^{-14}$ 
D – O bond is stronger than O – H bond so ionization of  $D_{2}O$ is less than  $H_{2}O$
The  pD value of neutral  $D_{2}O$ is 7.43 so if  $D_{2}O$  has $pD7.2$  which is less than  $7.43,D_{2}O$ is acidic. For neutral  $H_{2}OpH=7$ but for  $D_{2}O$  is 7.43