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• Take about 2 g lead nitrate powder in ...

• Take about 2 g lead nitrate powder in a boiling tube.
• Hold the boiling tube with a pair of tongs and heat it over a flame,
What do you observe ? Note down the change, if any.

Text Solution

Verified by Experts

Observation : We observe the emission of brown fumes. These fumes are of nitrogen dioxide `(NO_2)`. The following reaction takes place :
`2Pb(NO_3)_2 overset("heat")(rarr)2PbO + NO_2 + O_2`
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