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UPSC CDS 2 2020 GK Paper
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© examsnet.com
Question : 1
Total: 120
Lead nitrate on heating gives
P
b
O
2
and
N
O
2
PbO and NO
2
PbO and NO
P
b
O
2
and
N
O
Validate
Solution:
On heating, lead nitrate is converted into yellow color lead oxide, brown color nitrogen dioxide, and colorless gas of oxygen. The reaction will be
2
P
b
(
N
O
3
)
2
→
2
P
b
O
+
4
N
O
2
+
O
2
This reaction is an example of a decomposition reaction.
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