SATHEE: pBlock ElementsII 1 Question 5

pBlock ElementsII 1 Question 5

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 $H_{3} {PO}_{2}$

(d) $H_{3} {PO}_{2}$ and $H_{4} P_{2} O_{5}$

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Answer:

Correct Answer: 5. (d)

Solution:

Let us consider the structure of the phosphorus oxyacids,

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pBlock ElementsII 1 Question 5

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

Answer:

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