$BaC{l}_2. 2H_{2}O$(Barium chloride dihydrate) contains ____ ?

Water of crystallization in $BaC{l}_2. 2H_{2}O$remains embedded in the interstitial voids or spaces within the crystal lattice of $BaC{l}_2$. The binding force is the electrostatic interaction between the barium ion and the lone pairs of the water molecule. This hydrated barium chloride has a monoclinic crystal structure ( refer Solid State ).