Answer:
the three products of destructive distillation of coal are:-
1. coal gas
2. coke
3. ammonia liquor
The wave length of light. This determinds the color/type of light.
1. slowly heat stubstance.
2. once the substance is at the most liqued state take the temp. that's the melting point of that subtance.
hope that helps, any other questions feel free to DM me dont wate your points. :)
A spectrum that includes all colors and doesn't have
any gaps in it is a continuous spectrum.