Q.

Correct statements about AlCl3?

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a

AlCl3  sublimes at 1800C

b

In the solid state, it has layered structure 

c

Almost above 8500C, it totally exists as a monomer

d

Aqueous solution of  AlCl3 turns red litmus blue 

answer is B, C, D.

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Detailed Solution

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AlCl3 is a salt of strong acid and weak base, therefore it exhibits acidic properties. Therefore, it changes blue litmus paper into red.

AlCl3 exists in dimer form and due to have weak intermolecular forces, it sublimes at 1800C.

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