Chemistry · Combustion and Flame
Which of the following substances are present on the rubbing surface of a matchbox?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Potassium and white phosphorus
- 2Red phosphorus and magnesium
- 3White phosphorus and glass powder
- 4Glass powder and red phosphorus✓
Correct answer
Glass powder and red phosphorus
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