The type of reaction that occur when (CH4) burns in oxygen to produce carbon dioxide and water is combustion reaction
explanation
Combustion reaction is type of chemical reaction in which a compound and oxidant react to produce heat and new product.
when a hydrocarbon for example methane undergoes combustion it produces carbon (iv) oxide, water and heat according to reaction below.
CH4 + 2O2 → CO2 + 2H2O + heat
