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Tardigrade
Question
Chemistry
Which of the following has the smallest number of molecules?
Q. Which of the following has the smallest number of molecules?
1882
246
WBJEE
WBJEE 2007
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A
0.1
mole of
C
O
2
gas
B
11.2
L
of
C
O
2
gas at
STP
C
22
g
ot
C
O
2
gas
D
22.4
×
10
3
m
L
of
C
O
2
gas at
STP
Solution:
(a)
0.1
mole of
C
O
2
(b)
22.4
11.2
=
0.5
mole of
C
O
2
(c)
44
22
=
0.5
mole of
C
O
2
(d)
22400
22.4
×
1
0
3
=
1
mole of
C
O
2
Hence, the number of moles of
C
O
2
is least ie,
0.1