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Q.

A phosphorus oxide has 43.6% phosphorus. The empirical formula of the compound is ____?

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a

P2O5

b

P2O3

c

P4O6

d

PO2

answer is A.

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Detailed Solution

P O43.6/31=1.4 100-43.6=56.4/16=3.521.4/1.4=1 3.52/1.4=5/2Simple ratio is 1 : 5/2 = 2.5Thus the EF is P2O5

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