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General Principles And Processes Of Isolation Of Elements

Question
CBSEENCH12011395
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Al2O3 can be converted to anhydrous AlCl3 by heating:

  • Al2O3 with HCl gas

  • Al2O3 with NaCl in solid state

  • a mixture of Al2O3 and carbon in dry Cl2 gas

  • Al2O3 with Cl2 gas

Solution

C.

a mixture of Al2O3 and carbon in dry Cl2 gas

Al2O3 may be converted to anhydrous AlCl3 by heating of mixture of Al2O3 and carbon in dry chlorine
Al subscript 2 straight O subscript 3 space plus 3 straight C space plus stack space 3 Cl subscript 2 with Hot space and space dry below space rightwards arrow space stack Al subscript 2 Cl subscript 6 with left parenthesis anhydrous space AlCl subscript 3 right parenthesis below

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