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P(4)+NaOH+H(2)O rarr NaH(2)PO(3)+PH(3) i...

`P_(4)+NaOH+H_(2)O rarr NaH_(2)PO_(3)+PH_(3)` is

A

oxidation reaction

B

reduction reaction

C

both oxidation abnd reduction reaction

D

none fo these

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Verified by Experts

The correct Answer is:
C
In this reaction, the oxidation number of P is incresasing from 0 (in `P_4`) to +3 (in `NaH_2PO_3`) as well decreasing from `0` (in `P_4`) to `-3` (in `PH_3`) Thus, it is a redox reaction. In fact, it is a disproportionation reaction.
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R SHARMA-REDOX REACTIONS-Archives
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  4. Which of the following is the most powerful reducing agent ?

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  8. Which of the following is both oxidizing as well as reducing agent ?

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  9. P(4)+NaOH+H(2)O rarr NaH(2)PO(3)+PH(3) is

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  10. MnO(4)^(2-) (1 mole) in neutral aqueous medium is disproportionate to

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  11. The oxidation states of sulphur in the anions SO(3)^(2-), S(2)O(4)^(2-...

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  14. The reaction in which hydrogen peroxide acts as a reducting agent is .

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  15. HNO3 acts as .

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  18. The reaction 5H(2)O(2)+XClO(2)+2OH^(-) rarr XCl^(-)+YO(2)+6H(2)O i...

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  19. In H2O2, the oxidation state of oxygen is .

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