Question

Which of the following statements about anhydrous
aluminium chloride is correct?
(a) It fumes in moist air
(b) It exists as dimer both in the vapour state below 350°C
and in non-polar solvents
(c) It is prepared by heating Al₂O₃ in a stream of sulphur
chloride (S₂Cl₂) vapours and chlorine.
(d) All of these

Answer 1

All the above statements about anhydrous aluminum chloride are correct.

- Anhydrous aluminum chloride fumes in moist air due to the presence of HCl gas.

: This compound is then further hyrolyzed with moisture in the atmosphere to produce HCl gas.

- It exists as a dimer ( aluminum chloride ) both in the vapour state below 350°C and in non- polar solvents.

: It's a very strong Lewis acid and thus gets the tendency to gain electrons to complete it's octate.

- It is prepared by heating ( aluminum oxide ) in a steam of sulphur chloride vapours and chlorine