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PbS+4H(2)O(2)rarrPbSO(4)+4H(2)O. In this...

`PbS+4H_(2)O_(2)rarrPbSO_(4)+4H_(2)O`. In this reaction `PbS` undergoes 

A

oxidation

B

reduction

C

both

D

none of these

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-STOICHIOMETRY-Objective Exercise -1
  1. (A) : F(2)+NaOH to NaF+OF(2)+H(2)O is an example of redox reactions wi...

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  2. The conversion KMnO(4)rarrK(2)MnO(4) is an example of

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  3. PbS+4H(2)O(2)rarrPbSO(4)+4H(2)O. In this reaction PbS undergoes

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  4. MnO(2)+4HClrarrMnCl(2)+Cl(2)+2H(2)O, In the reaction MnO(2) acts as

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  5. In the reaction P(4)+3OH^(-)+3H(2)Orarr 3H(2)PO(2)^(-)+PH(3) phosp...

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  6. Decomposition of H(2)O(2) is an example of

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  7. Which of the following is an oxidation and reduction reaction?

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  8. Which of the following is not a redox reaction?

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  9. 2CuIrarrCu+CuI(2), the reaction is

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  10. In a reaction between zinc and iodine, in which zinc iodide is formed,...

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  11. Which one of the following reactions does not involve either oxidation...

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  12. In the reaction : C(2)O(4)^(2-)+MnO(4)^(-)+H^(+) to Mn^(2+)+CO(2)+H(2)...

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  13. 4ClO(3(aq))^(-)to3ClO(4(aq))^(-)+Cl((aq))^(-) is an example of

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  14. The oxidation number of hydrogen in CaH(2) and NaH are respectively

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  15. In the reaction : Cl(2)+H(2)S to 2HCl+S, the oxidation number of S cha...

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  16. Which of the following is redox reaction

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  17. C+O(2)rarrCO(2)  the reaction is

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  18. Which of the following is not chemical combinations

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  19. Which of the following is decomposition reaction

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  20. Which of the following is not an example of disproportionation reactio...

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