(a) How does the supply of air affect combustion of saturated hydrocarbons? (b) What is indicated by: (i) sooty flame (ii) blue flame of a bunsen burner? (c ) Why are holes provided at the bottom of a bunsen burner?

(a) How does the supply of air affect combustion of saturated hydrocar

1.	(a) How does the supply of air affect combustion of saturated hydrocarbons? (b) What is indicated by: (i) sooty flame (ii) blue flame of a bunsen burner? (c ) Why are holes provided at the bottom of a bunsen burner?
Answer» Solution :(a) If air SUPPLY is not sufficient, saturated hydrocarbons give YELLOW SOOTY flame. (b) (i) Yellow sooty flame-Burning of UNSATURATED hydrocarbons such as ethene and ethyne/incomplete combustion (any one), (ii) Blue falme-Burning of saturated hydrocarbons/completecombustion. (c ) Holes let the supply of air to be adjusted for complete combustion.