Red phosphorous is changed into white phosphorous by______________________?
Correct answer: A. Vaporisation followed by condensation
- A. Vaporisation followed by condensation
- B. Melting under pressure
- C. Heating in presence of light
- D. None of these
Explanation
Red phosphorus is first vaporised at high temperature and then condensed to form the white allotrope. Simple heating in light does not produce this conversion.
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