Anhydrous AlC l_3 cannot be obtained from which of the following … - Vidyadip

MCQ

Anhydrous $AlC{l_3}$ cannot be obtained from which of the following reactions

✓
Heating $AlC{l_3}.6{H_2}O$
B
By passing dry $HCl$ over hot aluminium powder
C
By passing dry $C{l_2}$ over hot aluminium powder
D
By passing dry $C{l_2}$ over a hot mixture of alumina and coke

✓

Answer

Correct option: A.

Heating $AlC{l_3}.6{H_2}O$

a
(a) $AlC{l_3}.6{H_2}O\xrightarrow{\Delta }Al{(OH)_3} + 3HCl + 3{H_2}O$

Thus $AlC{l_3}$ can not be obtained by this method

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