Question
Download Solution PDFWhen lead nitrate is heated, then which of the following gases is produced?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is Nitrogen dioxide.
Key Points
- Lead nitrate breaks down into Lead oxide (PbO), oxygen (O2), and nitrogen dioxide (NO2) when heated.
- When lead nitrate is heated, lead monoxide, nitrogen dioxide, and oxygen are produced.
- Light yellow solid lead monoxide, reddish-brown nitrogen dioxide gas, and colourless oxygen gas are the byproducts of its breakdown.
- The balanced reaction is : 2Pb(NO3)2 →2 PbO +4NO2+O2The brown fumes observed are of Nitrogen Dioxide (NO2)
Important Points
Identification of gases in chemistry can be done as below:
|
Gas |
Characteristics |
|
Hydrogen |
Burns with a popping sound |
|
Oxygen |
Glowing wooden splint relights in a test tube of oxygen |
|
Carbon dioxide |
Turns limewater milky |
|
Ammonia |
The characteristic sharp, choking smell |
|
Chlorine |
Characteristic sharp, choking smell. It makes damp blue litmus paper turn red |
Last updated on Jul 10, 2025
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