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Problem
Problem
Nitrogen gas is liberated by thermal decomposition of : a.
N
H
4
N
O
2
NH_{4}NO_{2}
N
H
4
N
O
2
b.
N
a
N
3
NaN_{3}
N
a
N
3
c.
(
N
H
4
)
2
C
r
2
O
7
(NH_{4})_{2}Cr_{2}O_{7}
(
N
H
4
)
2
C
r
2
O
7
d. All
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