Identify the reactions types urgently dear experts:

Dear student,

The reaction types of the following reactions are:
1. Two different elements combine to five a molecule hence it is a combination reaction
3. A more reactive halogen (F) replaces a less reactive halogen (Br) hence called a single replacement reaction.
5. It is a double displacement reaction 
7. Methane reacts with oxygen hence called a combustion reaction.
9. It is a double displacement reaction.
11. It is synthesis reaction as lead oxide is formed.

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