The order of the oxidation | Chemistry | JEE Advance 2017

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The order of the oxidation state of the phosphorus atom in $\mathrm{H}_3 \mathrm{PO}_2, \mathrm{H}_3 \mathrm{PO}_4, \mathrm{H}_3 \mathrm{PO}_3$, and $\mathrm{H}_4 \mathrm{P}_2 \mathrm{O}$ is:-

Select the correct option:

A

$\mathrm{H}_3 \mathrm{PO}_4>\mathrm{H}_3 \mathrm{PO}_2>\mathrm{H}_3 \mathrm{PO}_3>\mathrm{H}_4 \mathrm{P}_2 \mathrm{O}_6$

B

$\mathrm{H}_3 \mathrm{PO}_2>\mathrm{H}_3 \mathrm{PO}_3>\mathrm{H}_4 \mathrm{P}_2 \mathrm{O}_6>\mathrm{H}_3 \mathrm{PO}_4$

C

$\mathrm{H}_3 \mathrm{PO}_3>\mathrm{H}_3 \mathrm{PO}_2>\mathrm{H}_3 \mathrm{PO}_4>\mathrm{H}_4 \mathrm{P}_2 \mathrm{O}_6$

D

$\mathrm{H}_3 \mathrm{PO}_4>\mathrm{H}_4 \mathrm{P}_2 \mathrm{O}_6>\mathrm{H}_3 \mathrm{PO}_3>\mathrm{H}_3 \mathrm{PO}_2$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

$\mathrm{H}_3 \mathrm{PO}_4^{+5}>\mathrm{H}_4 \stackrel{+4}{\mathrm{P}} \mathrm{O}_6>\mathrm{H}_3 \mathrm{PO}_3^{+3}>\mathrm{H}_3 \mathrm{PO}_2^{+1}$

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