Question

Explain the type of reactiin with reference to oxygen and hydrogen lllustratre with example.

Answer 1

There are main four types of chemical reactions which are as follow:

1.Combination Reaction

When two atoms react to form a compound, it is know as combination reaction.

eg. 2H2 + O2---> 2H2O

2. Decomposition Reaction

When a compound breaks into simple molecular substances from which it is made up of, it is know as decomposition reaction.

eg. 2H2O ---> 2H2 + O2

3. Displacement Reaction

When a highly reactive metal displaces a low reactive metal it is said to be displacement reaction.

eg. Ca + HCO3 ---> Ca2CO3 + H2

4. Double Displacement Reaction

When two compounds react to form two new compound it said to be double displacement.

eg. CaCO3 + NaOH ---> Ca(OH)2 + Na2CO3

hope it helps mark me brainiest