Q.
During hydrate formation from aqueous solution, water can be associated in different forms. Indicate the wrong combination.
(i) Coordinated water - $[Cr(H_2O)_6]^{3+}3Cl^-$
(ii) Interstitial water - $BaCl_{2}\cdot2H_{2}O$
(iii) Hydrogen bonded water - $\left[Cu\left(H_{2}O\right)_{4}\right]^{2+}SO_{4}^{2-}\cdot H_{2}O$
Hydrogen
Solution: