A chemical process in which a
substance reacts with oxygen to give
off heat is called:
A
ignition
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B
combustion
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C
Both A and B
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D
None of the above
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Solution
The correct option is D combustion A chemical process in which a substance reacts with oxygen to give off heat is called combustion. The substance that undergoes combustion is known as a combustible substance.
The lowest temperature at which a
substance catches fire is called its
ignition temperature.