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Tardigrade
Question
Chemistry
The ratio of Fe 2 O 3 and Al, in thermite is:
Q. The ratio of
F
e
2
O
3
and
A
l
, in thermite is:
1595
199
BITSAT
BITSAT 2007
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A
1 : 3
27%
B
1 : 2
16%
C
3 : 1
55%
D
None of these
1%
Solution:
Thermite is the mixture of
F
e
2
O
3
and
A
l
.
In thermite, the ratio of
F
e
2
O
3
and
A
l
is
3
:
1
by weight.
F
e
2
O
3
+
2
A
l
→
2
F
e
+
A
l
2
O
3
Due to great affinity of aluminium towards oxygen, it readily combines with oxygen.