Question

which substance give heat and light after combustion

A flame
B fuel
C combustion
D none of these​

Answer 1

Answer:

The substance which undergoes combustion is said to be combustible.It is called fuel. If a magnesium ribbon is heated,it starts burning. When a magnesium ribbon burns,it combines with the oxygen of air to form magnesium oxide,and liberates heat and light.

Explanation:

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Answer 2

Option C) combustion

Combustion substance give heat and light after combustion

• Something that burns to produce heat and light is said to be combustible. Wood, coal, kerosene, gasoline, and LPG are a few examples. A chemical reaction known as combustion generates heat and light in the form of flames when oxygen is present.
• As you can see, among the more widely used metals, copper and aluminium have the highest thermal conductivity, while steel and bronze have the lowest. As the atoms of other materials including carbon rise, they warm up and emit light.
• This "heat makes light" process is known as incandescence, which is the same phenomenon that creates light in a light bulb. In the sun's core, where temperatures are extremely high and pressure is extremely high, hydrogen is transformed into helium through nuclear fusion. Nuclear fusion produces heat and photons (light).

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