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Class 11 NEET Chemistry Some Basic Concepts Of Chemistry
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© examsnet.com
Question : 60
Total: 60
1
c
c
N
2
O
at
N
T
P
contains
(1988)
1.8
224
×
10
22
atoms
6.02
22400
×
10
23
molecules
1.32
224
×
10
23
electrons
all of the above.
Validate
Solution:
As we know
22400
c
c
of
N
2
O
contain
6.02
×
10
23
molecules
∴ 1 cc of
N
2
O
contain
6.02
×
10
23
22400
molecules
since in
N
2
O
molecule there are 3 atoms
∴
1
c
c
N
2
O
=
3
×
6.02
×
10
23
22400
atoms
=
1.8
×
10
22
224
atoms
No. of electrons in a molecule of
N
2
O
=
7
+
7
+
8
=
22
Hence, no. of electrons
=
6.02
×
10
23
22400
×
22
electron
=
1.32
224
×
10
23
electrons
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