The substance which give heat and light after combustion are called?

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Solution

The substance which gives heat and light after combustion is called a combustible substance.
Combustion is an exothermic process in which fuel burns in the presence of oxygen and release carbon dioxide (CO₂), heat, light, and energy.
For examples: wood, coal, kerosene, petrol, LPG, etc.

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Combustion is the process of burning of a substance in the presence of air or oxygen with the liberation of heat and light. Substances that burn in air or oxygen to produce heat and light are called combustible substances. They are also known as fuel. Substances that do not burn in air or oxygen are called non-combustible substances. Products of combustion depend upon the nature of the combustible substance. Most of the fuels that we use are hydrocarbons. when these hydrocarbons (present in fuel) burn completely, the products formed are:

Q. A substance which reacts with oxygen giving heat is called a combustible substance. Which one of the following is a combustible substance?

Q. A ____________ process in which a substance reacts with__________ to give off heat is called combustion.

A physical process in which a substance reacts with oxygen to give off heat is called combustion.

Q. Question 1
A substance which reacts with oxygen giving heat is called a combustible substance. Which, one of the following is a combustible substance?

(a) Iron nail
(b) Glass
(c) Stone piece
(d) Wood

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The substance which give heat and light after combustion are called?

The substance which gives heat and light after combustion is called a combustible substance. Combustion is an exothermic process in which fuel burns in the presence of oxygen and release carbon dioxide (CO2), heat, light, and energy.For examples: wood, coal, kerosene, petrol, LPG, etc.

The substance which gives heat and light after combustion is called a combustible substance.
Combustion is an exothermic process in which fuel burns in the presence of oxygen and release carbon dioxide (CO₂), heat, light, and energy.
For examples: wood, coal, kerosene, petrol, LPG, etc.