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Question
Chemistry
For a reaction A +2B → C, the amount of C formed by starting the reaction with 5 moles of A and 8 moles of B is
Q. For a reaction
A
+
2
B
→
C
, the amount of
C
formed by starting the reaction with
5
moles of
A
and
8
moles of
B
is
2749
239
KEAM
KEAM 2010
Some Basic Concepts of Chemistry
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A
5 moles
7%
B
8 moles
10%
C
16 moles
21%
D
4 moles
55%
E
1 mole
55%
Solution:
As from rection
A
+
2
B
→
C
It is clear that
1
mole of
A
reacts with
2
moles of
B
to form
1
mole of
C
.
∴
4
moles of
A
will react with
2
×
4
=
8
moles of
B
to form
4
moles of
C
Here,
B
is limiting reagent.
1
mole of
A
remains unreacted.