Question

Anhydrous aluminium chloride $(A{l}_{2}C{l}_6)$ is covalent compound and soluble in water giving

• A. $A{l}^{3+}$ and $C{l}^{-}$ ions
• B. ${\left[Al{\left(H_{2}O\right)}_6\right]}^{3+}$ and $C{l}^{-}$ions
• C. ${\left[AlC{l}_2{\left(H_{2}O\right)}_4\right]}^{+}$and ${\left[AlC{l}_4{\left(H_{2}O\right)}_2\right]}^{-}$ions
• D. none of the above

Answer 1

Answer: (C)

Anhydrous aluminium chloride $\left(A{l}_{2}C{l}_6\right)$ is covalent compound and soluble in water giving ${\left[AlC{l}_2{\left(H_{2}O\right)}_4\right]}^{+}$and ${\left[AlC{l}_4{\left(H_{2}O\right)}_2\right]}^{-}$ions $AlC{l}_3\cdot 6H_{2}O\stackrel{\text{ dissociation }}{\to }{\left[AlC{l}_2\left(H_{2}O\right)\right]}^{+}+[AlC{l}_4{\left(H_2{O}_2\right]}^{-}$${\left[AlC{l}_2{\left(H_{2}O\right)}_4\right]}^{+}+{\left[AlC{l}_4{\left(H_{2}O\right)}_2\right]}^{-}$