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Reaction (A) S^(-2)+4H(2)O(2)rarrSO(4)^(...

Reaction (A) `S^(-2)+4H_(2)O_(2)rarrSO_(4)^(2-)+4H_(2)O`
(B) `Cl_(2)+H_(2)O_(2)rarr2HCl+O_(2)`
The true statement regarding the above reactions is :

A

`H_(2)O_(2)` acts as reductant in both the reactions.

B

`H_(2)O_(2)` acts as oxidant in reaction (A) and reductant in reaction (B).

C

`H_(2)O_(2)` acts as an oxidant in both the reactions.

D

`H_(2)O_(2)` acts as reductant in reaction (A) and oxidant in reactin (B)

Text Solution

Verified by Experts

The correct Answer is:
B
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(a) H_(2)O_(2)+O_(3)rarr H_(2)O +2O_(2) (b) H_(2)O_(2)+Ag_(2)Orarr 2Ag +H_(2)O+O_(2) Role of hydrogen peroxide in the above reactions is respectively

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In the reaction. H_(2)S+H_(2)O_(2) rarr S+2H_(2)O

The reaction 2H_(2)O_(2) rarr 2H_(2)O+O_(2) is r=k[H_(2)O_(2)]

H_(2)underline(S_(2))O_(8)+H_(2)O to H_(2)SO_(4)+H_(2)O_(2)

The reaction of H_(2)S+H_(2)O_(2) rarr S+2H_(2)O manifests

2MnO_(4)^(-) + 5H_(2)O_(2) + 6H^(+) rarr 2Z + 5O_(2) + 8H_(2)O Identify Z in the above reaction.

ALLEN-REDOX REACTIONS-Exercise - 1
  1. In a reaction H(2)O("steam")+C("glowing") to CO+H(2)

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  2. The compound that can work both as an oxidising as well as reducing ag...

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  3. Reaction (A) S^(-2)+4H(2)O(2)rarrSO(4)^(2-)+4H(2)O (B) Cl(2)+H(2)O(2...

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  4. A compound contains atoms A, B and C. The oxidation number A is +2, of...

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  5. Equivalent weight of N(2) in the change N(2) rarr NH(3) is

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  6. Equivalent weight of NH(3) in the change N(2)rarrNH(3) is :

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  7. In the reaction, 2S(2)O(3)^(2-)+I(2)rarrS(4)O(6)^(2-)+2I^(-). The eq. ...

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  8. In the reaction VO+Fe(2)O(3) rarr FeO+V(2)O(5), the eq.wt. of V(2)O(5)...

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  9. In the reaction, I(2)+2S(2)O(3)^(2-) rarr 2I^(-)+S(4)O(6)^(2-). Eq...

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  10. Molecular weight of KBrO(3) is M. What is its equivalent weight, if th...

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  11. In the reaction A^(-n2)+xe^(-)rarrA^(-n1) . Here, x will be :

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  12. What would be the equivalent weight of the reductant in the reaction :...

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  13. The eq. wt. of Na(2)S(2)O(3) as reductant in the reaction, Na(2)S(2)...

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  14. The equivalent weight of FeC(2)O(4) in the change FeC(2)O(4)rarrFe^(...

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  15. What will be n-factor for Ba(MnO(4))(2) in acidic medium? (Where it be...

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  16. The number of mole of oxalate ions oxidised by one mole of MnO(4)^(-) ...

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  17. Oxidising product of substance Na(3)AsO(3) would be

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  18. In a reaction, 4 mole of electrons are transferred to 1 mole of HNO(3)...

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  19. Balance given following half reaction for the unbalanced whole reactio...

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  20. Choose the set coefficients that correctly balances the following equa...

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