Tardigrade
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Tardigrade
Question
Chemistry
Consider the following compounds 1. (NH4)2Cr2O7 2. NH4NO2 3. NH4 VO3 4. NH4 NO3 Which compound(s) yield nitrogen gas upon heating?
Q. Consider the following compounds
1.
(
N
H
4
)
2
C
r
2
O
7
2.
N
H
4
N
O
2
3.
N
H
4
V
O
3
4.
N
H
4
N
O
3
Which compound(s) yield nitrogen gas upon heating?
1999
234
KEAM
KEAM 2018
The p-Block Elements - Part2
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A
1 and 2
50%
B
2 and 3
8%
C
3 and 4
8%
D
1 and 4
17%
E
All
17%
Solution:
Only
(
N
H
4
)
2
C
r
2
O
7
and
N
H
4
N
O
2
give
N
2
on
heating.
(i)
(
N
H
4
)
2
C
r
2
O
7
Δ
C
r
2
O
3
+
4
H
2
O
+
N
2
(ii)
N
H
4
N
O
2
Thermal decomposition
Δ
2
H
2
O
+
N
2