NTA Abhyas JEE Main2020Chemistryp Block Elements (Group 13 & 14)Practice
Which of the following statement about anhydrous aluminum chloride is correct?
Options
- AIt fumes in moist air.
- BIt exists as dimer both in the vapor state below 35 0 o C and in non-polar solvents
- CIt is prepared by heating A l 2 O 3 in a stream of Sulphur chloride ( S 2 C l 2 ) vapor and chlorine.
- DAll of these
Correct answer
D. All of these
Step-by-step solution
(i) A l C l 3 + 3 H 2 O → A l O H 3 + 3 H C l ↑ f u m e s (ii) It exists as dimer in non-polar solvents like benzene and in vapour state below 350 o C . (iii) 4 A l 2 O 3 + 3 S 2 C l 2 + 9 C l 2 → 8 A l C l 3 + 6 S O 2 ↑ A , B , C are correct D