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- 1. Multiple Choice
Combustion is a reaction in which a substance reacts with
hydrogen
Nitrogen
Oxygen
Chlorine
- 2. Multiple Choice
like fuel the sun also provides heat and light. the process taking place in the sun is called
Combustion
Nuclear Reaction
Burning
None of these
- 3. Multiple Choice
Identify the luminous zone in the given picture
A
C
B
None
- 4. Multiple Choice
The substance which ________ during burning give flames,
Heats
Vaporise
Boils
Melts
- 5. Multiple Choice
Combustion is a
Chemical process
Physical process
Both of these processes
None of these processes
- 6. Fill in the Blank
Lowest temperature at catch fire is called ,________
- 7. Multiple Choice
What is the unit for expressing the calorific value of a fuel?
m/sec
KJ/Kg
Kg/Kj
Kg
- 8. Open Ended
Define Combustion
- 9. Multiple Choice
What are the conditions for combution
Fuel/combustible substance
axygen
heat
All of the above
- 10. Multiple Choice
Does magnesium produce heat and light during its combustion?
True
False
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