Question

Give reasons a)kerosene burns with blue flame in stove but produces a yellow flame in a lamp

Answer 1

the colour of the flames are due the presence of oxygen if there is sufficient amount of oxygen then the colour of flame is blue while if there is not sufficient amount of oxygen then the colour of the flame will be yellow

Answer 2

because in stove is fully matelic body and kerosene burn only and in lamp with cloth kerosene is burnt to stay longer