How will you prove that luminous zone of a candle flame contains unburnt particles of carbon? Demonstrate with an experiment.

Explanation

### Step-by-Step Solution:

1. **Gather Materials**: You will need a candle, a lighter or matchstick, a glass plate, and a safe surface to conduct the experiment.

2. **Light the Candle**: Use the lighter or matchstick to light the candle. Ensure that the candle is stable and will not tip over.

3. **Position the Glass Plate**: After the candle has been lit, take the glass plate and hold it above the yellow part of the flame, which is known as the luminous zone. Make sure to hold it about 1-2 cm above the flame.

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