Question

a list of chemical and physical processes, a to h, is shown.
a combustion
b diffusion
c melting
d neutralisation
e photosynthesis
f reversible reaction
g roasting
h thermal decomposition

answer the following question about processes a to h.
state which of the processes a to h:
involves the breakdown of substances into simpler compounds when heat is applied.

Explanation:

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<reasoning>

Analyze the definition of the process

The question asks for a process that "involves the breakdown of substances into simpler compounds when heat is applied."

Match with the given options

• "Thermal" refers to heat.
• "Decomposition" refers to the chemical breakdown of a substance into simpler parts.
• Therefore, "thermal decomposition" matches the definition perfectly.

</reasoning>

<answer>
<mcq-option>G roasting</mcq-option>
<mcq-option>C melting</mcq-option>
<mcq-option>I don't know</mcq-option>
<mcq-correct>H thermal decomposition</mcq-correct>
<mcq-option>D neutralisation</mcq-option>
</answer>

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"question_type": "Multiple Choice",
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Answer:

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</pre_analysis>

<reasoning>

Analyze the definition of the process

The question asks for a process that "involves the breakdown of substances into simpler compounds when heat is applied."

Match with the given options

• "Thermal" refers to heat.
• "Decomposition" refers to the chemical breakdown of a substance into simpler parts.
• Therefore, "thermal decomposition" matches the definition perfectly.

</reasoning>

<answer>
<mcq-option>G roasting</mcq-option>
<mcq-option>C melting</mcq-option>
<mcq-option>I don't know</mcq-option>
<mcq-correct>H thermal decomposition</mcq-correct>
<mcq-option>D neutralisation</mcq-option>
</answer>

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"knowledge_point": [
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