question_answer

\[A{{l}_{2}}{{O}_{3}}\] can be converted to anhydrous \[AlC{{l}_{3}}\] by heating 

A) \[A{{l}_{2}}{{O}_{3}}\] with \[NaCl\] in solid state

B) a mixture of \[A{{l}_{2}}{{O}_{3}}\] and carbon in dry \[C{{l}_{2}}\] gas

C) \[A{{l}_{2}}{{O}_{3}}\] wither gas

D) \[A{{l}_{2}}{{O}_{3}}\] with \[HCl\] gas

Correct Answer: B

Solution :

[b] \[A{{l}_{2}}{{O}_{3}}\] can be converted to anhydrous \[AlC{{l}_{3}}\]by heating a mixture of \[A{{l}_{2}}{{O}_{3}}\] and carbon in dry \[C{{l}_{2}}\]