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Question
Chemistry
Al2O3 can be converted into anhydrous AlCl3 by heating
Q.
A
l
2
O
3
can be converted into anhydrous
A
lC
l
3
by heating
3624
240
AIPMT
AIPMT 2006
The p-Block Elements
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A
A
l
2
O
3
with HCI gas
24%
B
A
l
2
O
3
with NaCI in solid state
14%
C
A
l
2
O
3
a mixture of
A
l
2
O
3
and carbon in dry
C
l
2
gas
54%
D
A
l
2
O
3
with
C
l
2
gas
9%
Solution:
A
l
2
O
3
may be converted into anhyd.
A
lC
l
3
by heating a mixture of
A
l
2
O
3
and carbon in dry chlorine.
A
l
2
O
3
+
3
C
+
3
C
l
2
⟶
A
l
2
C
l
6
22
mm
Hot and dry
8
mm
Anhy
A
lC
l
2