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- 1. Multiple Choice
Which substance give heat and light after combustion
flame
fuel
combustion
none of these
- 2. Multiple Choice
Like fuel the sun also provides heat and light. The process taking place in the sun is called
combustion
nuclear process
burning
all of these
- 3. Multiple Choice
coal burns with _________
flame
only glow
both a & b
none of these
- 4. Multiple Choice
Burning of charcoal in a closed room will produce
carbon dioxide
nitrogen dioxide
carbon monoxide
all of these
- 5. Multiple Choice
The substances which have very low ignition temperature will
catch fire easily
will not catch fire
catch fire after some time
none of these
- 6. Multiple Choice
CNG and LPG are the examples of
solid fuels
liquid fuels
gaseous fuels
they aren't fuels
- 7. Multiple Choice
ignition temperature is
any temperature at which a substance catches fire
highest temperature at which a substances catches fire
lowest temperature at which a substance catches fire
- 8. Multiple Choice
what is combustion
chemical process
physical process
none of these
both a & b
- 9. Multiple Choice
the products of combustion are
carbon dioxide
oxygen & water
water and fire
- 10. Open Ended
https://cbseportal.com/MCQ/CBSE-Class-8-Solved-Science-combustion-and-flame
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