A) \[A{{l}_{2}}{{O}_{3}}\]with\[HCl\]gas
B) \[A{{l}_{2}}{{O}_{3}}\]with\[NaCl\]in solid state
C) a mixture of\[A{{l}_{2}}{{O}_{3}}\] and carbon in dry\[C{{l}_{2}}\]gas
D) \[A{{l}_{2}}{{O}_{3}}\]with\[C{{l}_{2}}\]gas
Correct Answer: C
Solution :
\[A{{l}_{2}}{{O}_{3}}\]maybe converted to anyhydrous \[AlC{{l}_{3}}\]by heating of mixture of\[A{{l}_{2}}{{O}_{3}}\]and carbon in dry chlorine. \[A{{l}_{2}}{{O}_{3}}+3C+\underset{hot\text{ }and\text{ }dry}{\mathop{3C{{l}_{2}}}}\,\xrightarrow[{}]{{}}\underset{(anhydrous\text{ }AlC{{l}_{3}})}{\mathop{A{{l}_{2}}C{{l}_{6}}}}\,\] Note Anhydrous\[AlC{{l}_{3}}\]exists in the form of dimer as
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