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10 questions
Combustion is a reaction in which a substance reacts with
hydrogen
Nitrogen
Oxygen
Chlorine
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
Identify the luminous zone in the given picture
A
C
B
None
The substance which ________ during burning give flames,
Heats
Vaporise
Boils
Melts
Combustion is a
Chemical process
Physical process
Both of these processes
None of these processes
Lowest temperature at catch fire is called ,________
What is the unit for expressing the calorific value of a fuel?
m/sec
KJ/Kg
Kg/Kj
Kg
Define Combustion
What are the conditions for combution
Fuel/combustible substance
axygen
heat
All of the above
Does magnesium produce heat and light during its combustion?
True
False
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