CBSE Class 8 Science Combustion and Flame
- what is non luminous
- prove that air supports burning
- How many zones are in candle flame?
- Will bio - gas burn with a flame ? Why?
- grafite burn with flame or not?
- when cowdung is burned in solid form do it produce yellow?
- After burning candle wax which substance remains in a solid form?
- Why a piece of wood does not catch fire when a lighted mathstick is brought near it
- Which zone of candle flame is dark and why?
- Why is it dangerous to burn coal in closed room?
Queries asked on Sunday & after 7 pm from Monday to Saturday will be answered after 12 pm the next working day.