$\mathrm{Al}_{2} \mathrm{O}_{3}$ can be converted to anhydrous $\mathrm{AICl}_{3}$ by heating

$\mathrm{Al}_{2} \mathrm{O}_{3}$ can be converted to anhydrous $\mathrm{AICl}_{3}$ by heating
  1. $\mathrm{Al}_{2} \mathrm{O}_{3}$ with $\mathrm{NaCl}$ in solid state
  2. a mixture of $\mathrm{Al}_{2} \mathrm{O}_{3}$ and carbon in dry $\mathrm{Cl}_{2}$ gas
  3. $\mathrm{Al}_{2} \mathrm{O}_{3}$ with $\mathrm{Cl}_{2}$ gas
  4. $\mathrm{Al}_{2} \mathrm{O}_{3}$ with $\mathrm{HCl}$ gas

Solution

$\mathrm{Al}_{2} \mathrm{O}_{3}$ can be converted to anhydrous $\mathrm{AICl}_{3}$ by heating a mixture of $\mathrm{Al}_{2} \mathrm{O}_{3}$ and carbon in dry $\mathrm{Cl}_{2}$

Asked in: JEE-TOPICTESTS-CHEMISTRY

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