pBlock ElementsII - Result Question 120

####5. The pair that contains two $P-H$ bonds in each of the oxoacids is

(2019 Main, 10 Jan II)

(a) $H _4 P _2 O _5$ and $H _4 P _2 O _6$

(b) $H _3 PO _3$ and $H _3 PO _2$

(c) $H _4 P _2 O _5$ and $H _3 PO _3$

(d) $H _3 PO _2$ and $H _4 P _2 O _5$

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Solution:

  1. Let us consider the structure of the phosphorus oxyacids,

$$ (P-H \text { bonds }=2) $$



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