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NTA Abhyas 2020

Exam: NTA Abhyas
Year: 2020
Subject: Chemistry
Chapter: p Block Elements (Group 13 & 14)

NTA Abhyas 2020 · Chemistry · p Block Elements (Group 13 & 14)

Which of the following statement about anhydrous aluminum chloride...

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)

AlC{l}_{3} + 3{H}_{2}O \to Al{ \left(OH\right)}_{3} + 3HCl ↑ \left(fumes\right)

(ii) It exists as dimer in non-polar solvents like benzene and in vapour state below

{350}^{o}C

.
(iii)

4A{l}_{2}{O}_{3} + 3{S}_{2}C{l}_{2} + 9C{l}_{2} \to 8AlC{l}_{3} + 6S{O}_{2} ↑

A, B, C

are correct D

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