Question

what is combination reaction? ​

Answer 1

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Combination reaction :-

The reaction in which two or more substances combine together to give a single substance.

For example- 2H2 + O2 ----> 2H2O

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Answer 2

A reaction in which two or more substances combine together to form a single product(sometimes more number of products) is called a combination reaction.

Example:

2Mg +O2 ------>2MgO