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Write the following for a white phosphor...

Write the following for a white phosphorus molecule: (a) oxidation state of P, (b) valency of P, (c) total number of bonds and (d) bond order. 

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Oxidation state of phosphorus in `P_(4)` molecule is zero. Valency of Pin `P_(4)` molecule is three. Each Patom forms 3 bond pairs and possesses one lone pair.
Total number of P-P sigma bonds in a molecule of phosphorus is six, Phosphorus-phosphorus bond order in `P_(4)` molecule is one.
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