Question

In a burning candle, the wax below the flame melts but does not catch fire....

Answer 1

Burning of candle actually incorporates a few actions.
1. Capillary Action (Enabled by Wick, which needs to be a good absorbent).
2. Burning of Hydrocarbon (Present in form of Wax).

When you initially light a candle, it takes some time to light up. This is because, at this time, we are trying to burn the wick of the candle. Once the wick catches fire, the generated heat melts the wax near by.

The liquid wax then, moves upward the wick due to capillary action. Wax consists of hydrocarbons ( a combination of carbon and hydrogen). The mixture then reacts with oxygen and keeps the flame burning till the wax is completely consumed.

Burning of candle wax is similar to burning of wood, logs or any other hydrocarbon. The process is entirely different from burning a candle.


hope it helps u yarrr

Answer 2

Answer:

In a burning candle, the wax melts but does not catch fire because though it has oxygen and fuel, but down below, sufficient heat is not present for the candle to burn.  Combustion of petrol produces heat because when we turn on any transport and ride in it, the petrol is burnt and it gets converted into a smoke because of a reaction.

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