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JEE · NEET Previous Year Question

$Which oxoacid of phosphorous has the highest number of oxygen atoms present in its chemical formula?$

Topic: JEE PYQ

Answer: D. Full step-by-step solution below.

A $Pyrophosphorous acid$
B $Hypophosphoric acid$
C $Phosphoric acid$
D $Pyrophosphoric acid$

Correct answer: D

Solution

(d) Pyrophosphorous acid \to H_{4} P_{2} O_{5} . Hypophosphoric acid \to H_{4} P_{2} O_{6} . Phosphoric acid \to H_{3} P O_{4} . Pyrophosphoric acid \to H_{4} P_{2} O_{7} .

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