SATHEE: pBlock ElementsII 1 Question 9

pBlock ElementsII 1 Question 9

9. The order of the oxidation state of the phosphorus atom in $H_{3} {PO}_{2}, H_{3} {PO}_{4}, H_{3} {PO}_{3}$ and $H_{4} P_{2} O_{6}$ is

(2017 Adv.)

(a) $H_{3} {PO}_{4} > H_{3} {PO}_{2} > H_{3} {PO}_{3} > H_{4} P_{2} O_{6}$

(b) $H_{3} {PO}_{4} > H_{4} P_{2} O_{6} > H_{3} {PO}_{3} > H_{3} {PO}_{2}$

(d) $H_{3} {PO}_{3} > H_{3} {PO}_{2} > H_{3} {PO}_{4} > H_{4} P_{2} O_{6}$

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Answer:

Correct Answer: 9. (b)

Solution:

$H_{3} \overset{+ 5}{P} O_{4} > H_{4} \overset{+ 4}{P_{2}} O_{6} > H_{3} \overset{+ 3}{P} O_{3} > H_{3} \overset{+ 1}{P} O_{2}$

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pBlock ElementsII 1 Question 9

9. The order of the oxidation state of the phosphorus atom in H3PO2,H3PO4,H3PO3 and H4P2O6 is

Answer:

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9. The order of the oxidation state of the phosphorus atom in $H_{3} {PO}_{2}, H_{3} {PO}_{4}, H_{3} {PO}_{3}$ and $H_{4} P_{2} O_{6}$ is