Question

Define complete combustion

Answer 1

it means that whatever you are burning (usually hydrocarbon) burns/reacts completely with oxygen gas (O2) to form ONLY CO2 (carbon dioxide) and water (H2O). So that means there are no by-products! Only CO2 and H2O are your products.

Answer 2

$\huge\underline{\pink{A}\blue{N}\orange{S}\purple{W}\red{E}\green{R}}$

Combustion-:

The process of heating a substance in presence of Oxygen to get heat and light is called complete combination.