Arrange the following in correct order-
a. Vaporization of wax
b. Formation of flame
c. Melting of wax

Charcoal does not form flame because

The blue zone of flame undergoes ______

Which is the hottest part of the flame?

in which part temperature of the flame is coolest

In which zone vapor undergoes partial combustion

Color of flame in illumination zone is

Temperature of illumination zone is _______

Choose the correct pair among the following –
a. blue zone – complete combustion
b. dark zone – vapors are unburnt
c. illumination zone – incomplete combustion