Heating of Lead nitrate in Chemical Reactions and Equations – Class 10 Science Experiment

Chapter Name: Chemical Reactions and Equations

Activity Name: Heating of Lead nitrate in Chemical Reactions and Equations

Activity Description:

Heating of Lead nitrate in Chemical Reactions and Equations - Class 10 Science Experiment
Heating of Lead nitrate in Chemical Reactions and Equations - Class 10 Science Experiment

This experiment involves heating lead nitrate in a boiling test tube, leading to its decomposition and the emission of nitrogen dioxide, lead oxide, and oxygen.

Required Items:

  1. Lead nitrate powder, boiling test tube, test tube holder, heat source (flame).

Step by Step Procedure:

  1. Take about 0.5g of lead nitrate powder and place it in a boiling test tube.
  2. Hold the boiling tube securely using a test tube holder.
  3. Heat the boiling tube over a flame.
  4. Observe and note down the changes that occur during the heating process.

Experiment Observations:

  • Brown fumes of nitrogen dioxide (NO2) are liberated in the boiling tube, indicating the decomposition of lead nitrate.

Precautions:

  1. Perform the experiment in a well-ventilated area or under a fume hood to avoid inhaling harmful gases.
  2. Use a test tube holder to handle the hot boiling tube and prevent burns.
  3. Wear appropriate safety gear, such as goggles and lab coat, to protect against potential hazards.

Lesson Learnt from Experiment:

The experiment demonstrates a thermal decomposition reaction, where lead nitrate breaks down into lead oxide, oxygen, and nitrogen dioxide upon heating.

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