By heating phosphorus in a free supply of air produces

phosphorus

(V)

oxide

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phosphorus trioxide

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phosphorus pentoxide

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phosphorus sesquioxide

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Solution

The correct option is B phosphorus pentoxide
Phosphorus pentoxide is an acid anhydride of phosphoric acid and obtained from white phosphorus in air supply. It consist of $P_{4}$ tetrahedron with oxygen inserted between the $P$ atoms and at vertices.
$P_{4} + 5 O_{2} \to P_{4} O_{10}$

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Similar questions

What happens when

(i) sodium metal is dropped in water ?

(ii) sodium metal is heated in free supply of air ?

(iii) sodium peroxide dissolves in water ?

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