Q.
Which of the following is not correct for black phosphorus?
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a
It can be α or β form
b
It burns when kept in air to give P2O5
c
It can have monoclinic or rhombohedral crystalline structure
d
White or red phosphorus can be converted to black form
answer is B.
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Detailed Solution
Black phosphorus burns only on heating above 673K, in air.
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