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In which reaction H2O2 acts reducing ag...

In which reaction `H_2O_2` acts reducing agent ?

A

`Ag_(2)O +H_2O_2 + 2Ag + H_(2)O + O_2`

B

`2KI + H_(2)O_(2) rarr 2KOH + I_2`

C

` PbS + 4H_2O_ 2rarrPbSO_4 + 4H_2O`

D

`H_2O_2 +SO_2 rarr H_(2)SO_4`

Text Solution

Verified by Experts

The correct Answer is:
A
In reduction reactions of `H_2O_2,O_2` is liberated
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AAKASH SERIES-REDOX REACTIONS-PRACTICE SHEET (EXERCISE - I) (LEVEL - I (MAIN))(Straight Objective Type Questions)
  1. Oxidation state of oxygen in H2O2 is

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  2. In the conversion of Br(2) " to " BrO3 the oxidation state of bromine...

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  3. The charge on cobalt in [Co(CN)6]^(3-) is

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  4. In nitric oxide (NO), the oxidation state of nitrogen is

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  5. In CH2 Cl2 the oxidation number of C is

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  6. Oxidation state of oxygen is -1 in the compound :

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  7. Chlorine has +1 oxidation state in

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  8. Oxidation number of S in S2Cl2 , is

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  9. In which  one of the following compounds the oxidation numberof iodine...

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  10. In MgH2 oxidation number of hydrogen is:

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  11. Which acts as a reducing agent ?

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  12. The compound that can work both as an oxidizing and reducing agent is

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  13. In the reaction, C + 4HNO(3) rarrCO(2) + 2H(2)O + 4NO(2), HNO3 acts a...

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  14. In the reaction, 2Ag + 2H(2)SO(4) rarrAg(2)SO(4) + 2H(2)O + SO(2) ,H(2...

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  15. In which reaction H2O2 acts reducing agent ?

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  16. When SO2 is passed in acidified potassium dichromate solution, the ox...

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  17. Which of the following is redox reaction

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  18. The decomposition of KClO3 " to "KCl and O2 on heating is an example...

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  19. In the reaction, NaOH + H(2)O + NaOH + H2

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  20. Which of the following disproportionation reaction

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