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Byju's Answer
Standard XII
Chemistry
Units and Dimensions
20 ml of CO...
Question
20 ml of
C
O
2
is passed over red hot coke. The volume of CO evolved is:
C
+
C
O
2
→
2
C
O
A
20
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B
40
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C
60
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D
10
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Solution
The correct option is
B
40
C
O
2
+
C
→
2
C
O
22.4
ltr of
C
O
2
gives
2
×
22.4
of
C
O
1
ltr of
C
O
2
gives
2
×
22.4
22.4
of
C
O
20
×
10
−
3
ltr of
C
O
2
gives
2
×
22.4
×
20
×
10
−
3
22.4
of
C
O
=
0.04
=
40
cc of
C
O
Hence, the correct answer is B.
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