Acids containing oxygen are called oxyacids. Prefix 'Pyro' is used when two units of a parent acid condense together with removal of one water molecule. When one unit of a parent acid on an average loses a water molecule producing an acid having at least one acidic hydrogen, the resulting acid is called meta-acid.
Which of the following is correct for $H_{3} P_{3} O_{9}$ ?

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Three P-O-P bonds are present in it

Oxidation state of P is +5

Three p $π$ -d $π$ : bonds are present in it.

All of the above

answer is D.

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Detailed Solution

There is total 3 P-O-P bond present in the molecule. There are three P-O-P bonds in the structure of cyclic meta-phosphoric acid. Here the value of the oxidation state of the Phosphorus is 5. There area total three pπ-dπ bonds are present in it.

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