CBSE · Class 8 · Science · Combustion and FlameSpontaneous combustion is best exhibited by which of the following?
Step-by-Step Solution
Coal dust or forest fires due to heat from the sun can exhibit spontaneous combustion, where materials catch fire on their own without any apparent external flame.
Detailed Options Breakdown
Option : LPG cylinder
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Combustion and Flame.
Option 1: Phosphorus in air at room temperature (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: Burning a candle
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Combustion and Flame.
Option 3: Lighting a matchstick
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Combustion and Flame.
💡 Study Guide: This question tests core syllabus concepts from Combustion and Flame. For formulas, key summaries, and mock exam reference guides, read the full Combustion and Flame Revision Notes.