No, the blue part is the hottest. In fact, you should adjust the burner so that you only have a blue flame. A yellow/orange/red flame is indicative of incomplete combustion (generating carbon monoxide).
The hottest flame is the blue flame and the coolest flame is yellow.
no, the blue flame is hottest
The blue flame of the Bunsen burner is when it is hottest. The yellow flame is the safety flame. you should always start the burner on the safety flame which is produced when the holes on its base are closed.
The hottest part is where the flame is light blue or blue; which gradually turns to yellow as the flame is cooled by the colder outer air. When the safety flame (yellow) is on, the hottest point is the tip of this flame.
The silent flame on the Bunsen burner is the yellow/orange flame.
The tip of the blue cone is the hottest part of the Bunsen burner flame.
A Bunsen burner flame is hottest when the air valve hole is open.
The fire
The blue section of the flame.
The tip of the inner flame is the hottest.
The hottest flame is the blue flame - and especially the tip of the inner flame.
Near the tip of a blue flame is the hottest.