Combustion and Flame

(a)   is the process in which a substance burns in presence of oxygen to produce heat and light

LPG, CNG and petrol are examples of (a)   combustion

Ignition temperature of white phosphorus used in matchsticks is (a)   degree centigrade

Colour Non luminous flame is (a)  

Cow dung cake is used to make (a)   fuel which is eco friendly

A good fuel should have a high (a)  

A (a)   is a region of fire where combustion of gaseous substances takes place

(a)   colour of the flame is caused due to the glow of unburnt carbon particles

Outer zone is also called (a)   zone

(a)   is another word for kindling temperature