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Standard VIII
Chemistry
Question

A chemical process in which a substance reacts with oxygen to give off heat is called as:
  1. endothermic
  2. combustion
  3. reduction
  4. none of the above

A
reduction
B
endothermic
C
combustion
D
none of the above
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Solution
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Combustion is a chemical process in which, a substance reacts rapidly with oxygen and gives off heat. The original substance is called the fuel, and the source of oxygen is called the oxidizer.

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