Anhydrous AlCl3 is covalent while AlF3 is ionic. This is justified by

Fajan's rules explains the covalent character. based on the following factors:Small sized cation and large sized anion favours the formation of covalent bond.More charge on cation and anion favours the formation of covalent bond.Hence AlCl3 is covalent while AlF3 is ionic.

Anhydrous AlCl3 is covalent while AlF3 is ionic. This is justified by

Fajan's rules explains the covalent character. based on the following factors:Small sized cation and large sized anion favours the formation of covalent bond.More charge on cation and anion favours the formation of covalent bond.Hence AlCl3 is covalent while AlF3 is ionic.

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Anhydrous AlCl₃ is covalent while AlF₃ is ionic. This is justified by

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Crystal structure

VB theory

Fajan's rules

Lattice energy

answer is C.

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Detailed Solution

Fajan's rules explains the covalent character. based on the following factors:

Small sized cation and large sized anion favours the formation of covalent bond.
More charge on cation and anion favours the formation of covalent bond.

Hence AlCl₃ is covalent while AlF₃ is ionic.

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