Question

C. Answer the following questions in brief:
1 What is combustion? Give an example, .​

Answer 1

Answer:

Combustion reactions occur when oxygen reacts with another substance and gives off heat and light. Burning coal, methane gas, and sparklers are all common examples of combustion

Answer 2

★ Combustion :

➥ When a substance burns in the presence of the oxygen, involving the production of heat is called combustion.

• Combustion is a high - temperature exothermic chemical reaction.
• The products of a combustion reaction are called oxides.
• $\red {\sf Example \: :}$ Ethane and propane.
• Materials that burn rapidly is called as combustible substance. Ex :- petrol.
• Materials that don't burn rapidly is called as non combustible substance. Ex :- water.
• Combustion reaction transfers energy as heat or light.
• There are two main types of combustion :- Complete combustion and Incomplete combustion.