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

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

JEE MainJEE Main 2022The p-Block Elements - Part2

Solution:

Pyrophosphorous acid $\rightarrow H _4 P _2 O _5$.
Hypophosphoric acid $\rightarrow H _4 P _2 O _6$.
Phosphoric acid $\rightarrow H _3 PO _4$.
Pyrophosphoric acid $\rightarrow H _4 P _2 O _7$.