Red phosphorus can be prepared from white phosphorus by:
A
Heating it in an inert atmosphere for several days
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B
Distilling it in inert atmosphere
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C
Dissolving it in carbon disulphide and crystallising
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D
Melting it and pouring the liquid into water
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Solution
The correct option is A Heating it in an inert atmosphere for several days Red phosphorus is obtained by heating white phosphorus at 573K in an inert atmosphere for several days.
White phosphorusΔ−−−−−−−→Several daysRed phosphorus