Question

difference between complete and incomplete combustion

Answer 1

ok hope it helps you

Incomplete combustion——

when the supply of air /oxygen is not sufficient,due to which substance is not completely burnt, produce soot black

It gives — Yellow Flame  

Reaction—

H2C=CH2+2O2→2CO+2H2O

Complete combustion —

When the substance is completely burnt ,to produce CO2 and H2O  

It gives - Blue flame

CH4+2O2→CO2+2H2O