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When P reacts with caustic soda. The pro...

When P reacts with caustic soda. The products are `PH_(3) and NaH_(2)PO_(2)`. This reaction is an example of 

A

Oxidation reaction

B

Reduction reaction

C

Oxidation and reduction

D

Neutralization reaction

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The correct Answer is:
C
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(A) : White P reacts with caustic soda, the products are PH_(3) and NaH_(2)PO_(2) . This is reaction is an example of disproportionation reaction. (R) : In disproportionation reaction one and the same substance may act simultaneously as an oxidising agent and as a reduced agent.

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Ca_(3)(PO_(4))_(2) is

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AAKASH SERIES-STOICHIOMETRY-Objective Exercise -1
  1. Which of the following is not metal displacement

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  2. In the reaction 2Al+N(2)rarr2AlN, Al is

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  3. When P reacts with caustic soda. The products are PH(3) and NaH(2)PO(2...

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  4. Among the following ion the one that cannot undergo disproportionation

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  5. 3Cl(2)+6NaOHrarr5NaCl+NaClO(3)+3H(2)O, chlorine gets

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  6. Which reactions are useful to prepare Hydrogen in the laboratory

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  7. In which of the following reaction there is no change in oxidation sta...

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  8. In C+H(2)OtoCO+H(2),H(2)O acts as

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  9. The reaction is Decomposition but it's not redox reaction

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  10. Which one of the following generally gets displaced by more electro po...

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  11. KIO(3)+5KI+6HCl to 3I(2)+6KCl+3H(2)O Correct statement of this reactio...

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  12. When three moles of ozone completely reacts with SO(2), the number of ...

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  13. In the reaction SO(2)+1/2 O(2) overset(V(2)O(5))to SO(3) the change in...

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  14. In the reaction 3Br(2) + 6CO(3)^(2-) + 3H(2)OrarrBr^(-) + BrO3 + 6HCO...

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  15. The oxidation numbers of Mn in MnO(4)^(-) and [Mn(CN)6]^(3-) are respe...

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  16. Number of moles of hydrogen peroxide that can oxidise one mole of lead...

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  17. In the reaction Cr(2) O(7)^(2-) + 14 H^(+) + 6I^(-) to 2 Cr^(3+) + 3...

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  18. In which of the following compounds transition metal is in zero oxidat...

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  19. C(2)H(4)+H(2) to C(2)H(6) In terms of redox reaction notations A) ...

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  20. Which group P-block elements show highest positive oxidation state ?

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