Question:
Which one of the following statements is correct?
Which one of the following statements is correct?
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Pyrolysis occurs in the absence of oxygen and absorbs heat, while combustion occurs in the presence of oxygen and releases heat.
Updated On: Jan 2, 2026
- Pyrolysis is an endothermic process, which takes place in the absence of oxygen.
- Pyrolysis is an exothermic process, which takes place in the absence of oxygen.
- Combustion is an endothermic process, which takes place in the abundance of oxygen.
- Combustion is an exothermic process, which takes place in the absence of oxygen.
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The Correct Option is A
Solution and Explanation
Pyrolysis is the process of decomposing organic material by heat in the absence of oxygen, and it is an endothermic process, meaning it absorbs heat. The other options either confuse the nature of combustion or pyrolysis. Combustion, in contrast, is an exothermic process, but it requires oxygen to occur.
Final Answer: Pyrolysis is an endothermic process, which takes place in the absence of oxygen.
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