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Earn 100

What are the things which do not burn?

Important Questions on Carbon

MEDIUM
Can the process of rusting be called combustion? Discuss.
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Which of the following is not true about combustion?
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It is difficult to burn a heap of green leaves but dry leaves catch fire easily. Explain. 
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List conditions under which combustion can take place.
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The process by which heat energy is transmitted through collisions between neighboring molecules is known as?
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The lowest temperature at which a substance catches fire is called?
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Combustion is a reaction in which a substance reacts with

MEDIUM
Can you burn a piece of wood by burning a lighted matchstick near it? Explain.
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The substance which undergoes combustion is said to be?
MEDIUM
What are the conditions necessary for combustion to take place?
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A chemical process in which a substance reacts with oxygen to give off heat is called?
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What is known as inflammable substances?
MEDIUM
Define ignition temperature of a substance.
MEDIUM
Give reason, paper by itself catches fire easily whereas a piece of paper wrapped around an aluminium pipe does not.
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What are combustible substances? Name three combustible substances.
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Which of the following is not an example of inflammable substance?
MEDIUM
Why do you have to use paper or kerosene oil to start fire in wood or coal?
MEDIUM
Can the process of rusting be called combustion? Give reason for your answer.
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What are non-combustible Substances? Name three non-combustible substances.
EASY
Coal burns in air and produces?