Question

Heating of solid wastes in an oxygen free atmosphere is called

• A. Pyrolysis
• B. Thermal decomposition
• C. Carbonization
• D. Incineration

Hint:

Waste treatment processes: \[ \boxed{ \begin{aligned} \text{Pyrolysis} &\rightarrow \text{Heating without oxygen} \text{Incineration} &\rightarrow \text{Burning with excess oxygen} \end{aligned} } \]

Answer 1

The Correct Option is A

Step 1: Recall the definition of pyrolysis. Pyrolysis is the thermal decomposition of organic materials in the absence (or near absence) of oxygen.

Step 2: Identify the correct process. Since the waste is heated in an oxygen-free atmosphere, \[ \boxed{\text{Pyrolysis}} \] is the correct answer. Hence, \[ \boxed{(A)} \] is the correct answer.