Select the incorrect statement.

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(D) Anhydrous $AlCl_{3}$ is a covalent compound,not ionic. In the solid state and in non-polar solvents,it exists as a dimer $Al_{2}Cl_{6}$ where $Al$

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Anhydrous $AlCl_{3}$ is ionic.

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(D) Anhydrous $AlCl_{3}$ is a covalent compound,not ionic. In the solid state and in non-polar solvents,it exists as a dimer $Al_{2}Cl_{6}$ where $Al$ atoms are $sp^{3}$ hybridized. In the vapor phase at high temperatures,it exists as a trigonal planar monomer $AlCl_{3}$ where $Al$ is $sp^{2}$ hybridized. It fumes in moist air due to the hydrolysis reaction: $AlCl_{3} + 3H_{2}O \rightarrow Al(OH)_{3} + 3HCl$.

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